http://www.dual-boxing.com/showthread.php?t=26508

By the time you finish the mb friendly quests in hellfire you should be level 62 and have most of your gear replaced before running ramparts and blood furnace. If your haveing problems with mobs outside and quests a simple 4x wrath spam should make short work of any mob. Most of the group quests are not even elites anymore either. If your having problems with normal and group quests outside of instances, i dont know what to advise.

Hellfire, Swamp, Terrokar, and Nagrand quest lists are in that post.