After you have done a few quests in deepholm you can unlock the trogg spawn. In this spawn there's many big groups of troggs which you are able to farm. With my warrior I was able to pull off an 4,5 - 5mil exp/hour on 84-85 (while rested). This can work with any self healing classes, it is really a fast way of farming your way up to your last level if you don't want to keep questing all the time.
I've made a video you can see how I dinged 85 and you can also see how many mobs I'm able to handle :
Insaniator - Silvermoon 85 ding World of Warcraft .avi - YouTube
Greetings,