With TBC : You have access to 2 new races - Blood Elf (BE)on Horde, Draenei on Alliance.
Without TBC : You don't have access to those races and you cannot enter their starting area either.
My take : Get TBC. I like the BE and Draenei starting areas. Unless you're hoping for the prices to go down. May only go down when WoTLK is out (if it's like the time when TBC came out).

I went Affliction with Impoved Howl of Terror so that it becomes an instant cast.

Armory Pidot on Aman'thul. She's now leveling in Outlands with low level blues and greens. Ouch! Got lazy to do the lower level instances so got guildies to gear me up in gear from Uldaman and SM. I also made some tailored pieces to complement the set back when level 30 from my high level tailor priest.

Use Succy for high DPS. Turn off seduction.
Mob 1 : Siphon Life, Curse of Agony, Corruption (spec max talent for instant cast).
Mob 2 & 3 : Repeat.
Howl of Terror.
Life drain one of them.
Soul Drain Rank 1 to finish them off to get a shard.

Locks are OP.

But if you want it easy to level there's the hunter. You have a pet to tank.

whether your auction sold or not, you will received an in-game mail from the auction house.
there you will received your money or you auction item.

Hope that helps and wish you good luck making money.

The free server transfers doesn't happen often. Only if the population is too high on that particular server that Blizzard decides to open up for free transfers.

however, it's impromptu and for a period of 7-10 days usually.

PVE : if you turn on PVP flag, possible for high lvl char that can kill u w/o aggroing the low level guards.

Very Soon™

Just like u  I've been itching to have a peek at wow but after downloading it and playing it for 15 mins I can't stand it anymore. Very old combat system unlike guild wars 2 or other mmorpg.

So like, anyone here playing on frostmourne. Bit bored playing alone. Need some wow friends here in KL.