So I'm ready to install window on my mac for some gaming. Haven't used windows for a long time and never done bootcamp before. Which versions of windows should I get? I heard xp pro is a better choice because of Vista still fishy even with the upcoming sp1. There is plain o'l xp pro or xp pro x64 bit. Seems like bootcamp doesn't support x64 yet. Will it in the future? Should I get the x64 bit one because my computer has 64bit CPU? Does it matter much for gaming? Thanks for your help!