I just installed WoW on WinXP on my iMac 20" 2ghz CD with 1.5GB RAM. All settings on high (including 24 bit 6x sample) and I get average 40fps (with a max of 60) in Ironforge. In OSX with all settings on low (terrain distance etc) and some on mid (spell detail) with 24 bit 1x sample I get from 19fps to 26fps. If the server is busy, it drops quite drastically to 10 or 14fps. I still need to do some extensive testing - in Battlegrounds and other densely populated areas, but will post some screenshots soon. That's pretty damning either for Blizzard or Apple, or both. Why are we paying over the odds for sub standard performance? I love using my Mac, interface etc etc but for things like raw performance it lags behind. The only way to compare is to run apps like this; be the problem with the game designers or Apple. It's the PC geeks Apple need to win over and they will not do this when you get treble the performance on a PC.