Are you talking about the mod, or the technology Bethesda uses for it's graphical breakthrough?

Oh wait, that's the Creation Engine if I'm not mistaken.

In the pass Bethesda provides a tool to modify the game engine and create custom contents in the game dvd.

This time its not provided with Skyrim, but Bethesda promised they will be available online in January/February.

With the tool, the modding possibility will be able to reach new heights and level.

once the new tool is out, can it mod, say like adding a completely different character class, item, creatures, quests?

wondering what's the limit of the mods in the present/past Elder Scroll games. So far I'm seeing mostly graphical and UI mods only for Skyrim.

Yes. You can even add an entire race, build an entire building, town, or even create tonnes of custom animals and creatures.

In Oblivion, there was a quest where an entire town will be destroyed. A modder took the opportunity to then create custom quests to periodically build the town back.

guys is it nice to play Skyrim pc version with xbox 360 controller? need advice pls thx  

Personally, I won't play first person view games with a Xbox 360 controller.

Other games like third person view, platformers and maybe certain simulators would work better with Xbox 360 controllers or other peripherals.

Personally, I won't play first person view games with a Xbox 360 controller.

Other games like third person view, platformers and maybe certain simulators would work better with Xbox 360 controllers or other peripherals.

haha....anyway guys, where can i find 2 more words of 'aura whisper' shout? i only have the 'life' word now.

Just wondering, is there any way to tell if a quest is too high level for us?

As you know from the first city we visit, there was a quest by a priest to retrieve something relating to a tree. Since the quest is available, I thought it was suitable but only to find out the tree creature is too powerful for my level 4 character

Guess I have to wait until I'm stronger.

You're referring to the Nettlebane Quest?
Yeah beginning its quite tough but once you get level 100 smithing + enchanting 

Current 1.4 Changelog (all platforms unless noted)

NEW FEATURES

    * Skyrim launcher support for Steam Workshop (PC)

BUG FIXES

    * General optimizations for memory and performance
    * Fixed occasional issue with armor and clothing not displaying properly when placed on mannequin’s in player’s house. (PS3)
    * Improved compiler optimization settings (PC)
    * Long term play optimizations for memory and performance (PS3)
    * Memory optimizations related to scripting
    * Fixed crashes related to pathing and AI
    * Fixed crash in Haemar’s Shame if player had already completed “A Daedra’s Best Friend”
    * Fixed rare crash with loading saved games
    * Fixed issue with accented characters not displaying properly at the end of a line
    * Master Criminal achievement/trophy unlocks properly in French, German, Spanish and Italian
    * Fixed issue where dragon priest masks would not render correctly
    * Fixed issue where quests would incorrectly progress after reloading a save
    * Fixed issues with placing and removing books from bookshelves in the player’s home
    * Fixed issue where weapon racks and plaques would not work correctly in player’s house if player immediately visits their house before purchasing any furnishing.
    * Fixed issue where the player house in Windhelm would not clean up properly
    * Fixed crash related to giant attacks and absorb spells
    * Fixed issue with ash piles not cleaning up properly
    * Fixed occasional issue where overwriting an existing save would fail
    * Fixed memory crash with container menu
    * Fixed infinite loop with bookshelves
    * Fixed issue where traps in Shalidor’s Maze would not work properly in French, German, Spanish and Italian versions
    * Fixed issue where transforming back to human from werewolf would occasionally not fail
    * Bows and daggers will display properly when placed on weapon racks

QUEST FIXES

    * The Unusual Gem inside the Thalmor Embassy is now accessible after finishing “Diplomatic Immunity”
    * In “Breaching Security”, the quest token is no longer required to receive a fortune reading from Olava the Feeble
    * Fixed issue where Galmar would not complete Joining the Stormcloaks properly if “Season Unending” was an active quest
    * Fixed issue where starting “Season Unending” after finishing “Joining the Stormcloaks” would prevent “The Jagged Crown” from starting properly.
    * Fixed issue progressing through “Message to Whiterun” while “Season Unending” was still open would block progression for both quests.
    * In “Arniel’s Endeavor”, fixed issue where a quest journal would trigger multiple times
    * In “Forbidden Legend”, the amulet fragment can no longer disappear after player leaves a dungeon without taking it
    * Fixed rare issue in “Forbidden Legend” where killing Mikrul Gauldurson while sneaking would make his corpse unaccessible
    * In “The White Phial”, the phial can no longer disappear if player leaves dungeon without taking it
    * “The White Phial” will now start properly if player already has a briar heart in their inventory
    * Player can no longer get stuck in Misty Grove after completing “A Night to Remember”
    * Fixed issue where leaving Riften during “A Chance Arrangement” would prevent quest from progressing
    * In “Darkness Returns”, a door in Twilight Sepulcher will properly open if the player leaves the dungeon for an extended period of time before completing the quest
    * In “Under New Management”, if the player leaves the Oculory for an extended period of time after placing the focusing crystal and returns, the quest will proceed correctly
    * “Onmund’s Request” will now start properly if player has already found Enthir’s staff before receiving this quest
    * Fixed instance where Tonilia would stop buying stolen items and also would not give Guild Leader Armor
    * “Repairing the Phial” will start properly if player already has unmelting snow or mammoth tusk in their inventory
    * Finding Pantea’s Flute before speaking with Pantea no longer prevents her quest from updating
    * In “The Coming of the Dawn”, fixed rare instance where a quest object would spawn incorrectly on the Katariah during Hail Sithis
    * Fixed rare issue in “The Mind of Madness” where player is unable to equip the Wabbajack
    * Fixed issue in “Pieces of the Past” where Mehrunes Dagon’s Razor will not trigger properly if player leaves the cell for extended period of time before activating it
    * “Blood’s Honor” will start properly if you visited and completed Driftshade and an extended period of time passes before starting the quest.
    * Fixed rare issue where “Dampened Spirits” would not start properly
    * Fixed issue where player would be unable to become Thane of Riften if they purchased a home first
    * Fixed issue where killing guards in Cidhna Mine would block progression for “No One Escapes Cidhna Mine”
    * Fixed numerous issues with “Blood on the Ice” not triggering properly
    * In “Blood on the Ice”, Calixto can now be killed if player owns a house in Windhelm
    * In “The Cure for Madness”, killing Cicero then resurrecting him no longer impedes quest progress
    * Fixed rare issue in “To Kill an Empire” where an NPC would fail to die properly
    * Clearing Knifepoint Ridge before starting “Boethiah’s Champion” no longer prevents quest from starting.

first of all...register as member at skyrim nexus

after that it is recommended that you install nexus download manager.
it is much easier to install the mod using the download manager since you dont have to deal with the folders n stuff. you can easily install and uninstall the mod and pause/resume your download.'

once everything is in order, it is up to you to put however many mods you want.
as for me, this is the mod i've downloaded:

enhancing all the grass/trees/forests in skyrim
http://www.skyrimnexus.com/downloads/file.php?id=141

make women/men looks better/prettier
http://www.skyrimnexus.com/downloads/file.php?id=2812
http://www.skyrimnexus.com/downloads/file.php?id=2356

all-round makes everything HD-like! (reccomended)
http://www.skyrimnexus.com/downloads/file.php?id=607

to make quickbutton (Q) and inventory management a lot easier
http://www.skyrimnexus.com/downloads/file.php?id=3863
http://www.skyrimnexus.com/downloads/file.php?id=4862

sexier women (need to register before can install this mod. thats why i ask you to register first. heh)
http://www.skyrimnexus.com/downloads/file.php?id=2666

NPC clothes are more detailed
www.skyrimnexus.com/downloads/file.php?id=2674

enhanced blood texture (though i cant see much difference)
http://www.skyrimnexus.com/downloads/file.php?id=60

more detailed map with hand-drawn road (for easier exploring)
http://www.skyrimnexus.com/downloads/file.php?id=4929

your fps will suffer a bit if your pc is not high-end. i'm using a mid-end laptop but the fps is still tolerable.

quoted from V2, iamzacky provided a very nice and detailed list here.
in my own opinion, Categorized Favorites Menu totally should be listed. It enhance your quick menu (when u press Q) very very much.

As for tip and trick, here is one which some people who don't know:
By pressing numbers 1-8 while selecting the items/potions/skills in your favorite list (the list which appears after you press Q), you can assign number hotkeys to those items/potions/skills, so that during combat you can just switch skills/weapons/armors and eat potions by just pressing numbers 1-8 on your keyboard.

Here are links to some of the best mods available at SkyrimNexus and are included in the package.
*No More Blocky Faces*  *Detailed Faces V2*  *Vurts Skyrim Flora Overhaul* 
*FXAA Post Process Injector* *Enhanced Night Sky*  *Realistic Water Textures* 
*Enhanced Blood Textures*  *Enhanced Distant Terrain* *Immersive Skyrim Thunder*

*Caves Rocks Snow 4096 Textures* Not included in pack
*Serious HD Retexture Landscape Skyrim* Not included in pack

i'm using this.. it has all of the best graphical mods inside:
http://www.evga.com/forums/tm.aspx?m=1350300
(ignore running from 4gbskyrim. Latest patch supports 4GB memory execution)