A while ago I wrote a post about running Lord of the Rings Online on the mac platform using Crossover Games. This post was much visited from people that wanted to find out how to play lotro on the mac which shows that the mac crowd cannot be satisfied by the native WoW boredom.
I still do my Orc-bashing using a mac and I am very happy to say that the performance with the new version is even better. Some glitches like the floating names or the sound in videos belong to the past.
Putty for Mac