Ok I had a go with this add on..
i must say i am really impressed with it.
it actually able to show what quest you have completed and highlight those that you have not.. and show you to the npc/mob (drop quest) to get em.
I'm think the addon actually mines the information in a saved variable in WTF folder.. not sure how it works.. but this add on does alot more than what blizzard should have done.
This will really help alot to get those quest achievement.
I must say this definately rocks the like of blizzard questhelper.
If you think ingame questhelper rocks.. please do yourself a favour and download wow-pro.
If you're afraid of keyloggers (even though it's pretty legit since it is feature on wow dedicated sites) then well.. it your loss

Just wished I used this sooner for my pally alt! Even then it is so flexible because you can choose to sellect the best place to level, it's all guided..
Added on February 14, 2011, 9:01 pmQUOTE(raydenex @ Feb 14 2011, 06:49 PM)
Back when I was clearing quests on my main for Loremaster during mid-WotLK, I used an addon called Lightheaded. Look it up, basically pulls comments from wowhead and displays it in-game in reference to the quests you have in your quest log. No need to alt-tab out to desktop/browser to check wowhead. Helped me a lot.
apparently lightheaded works in sync with wow-pro.. an optional add on they recommend to use
This post has been edited by iv'N: Feb 14 2011, 09:01 PM