I normally wait a while, sometimes a year, if not more, until I upgrade to the next OS (Win8); but I keep hearing Win7 64-bit is still a good stable OS for gaming (by the way, I'm playing WoWP beta, Bioshock, and getting GTA V when it comes out next year). How many of you are currently running Win7 64-bit? Should I just upgrade now? (your comments/thought will help me a lot, thanks in advance).