Well windows 7 64-bit worked just fine on my old penryn MBP with 4GB ram. I can make it through installing windows 7 64bit just fine on the new unibody with 2GB of ram. When I reboot from installing the bootcamp drivers on the unibody OSX CDs, once I input my password, it freezes. Ive tried installing twice now. The only small thing I can think of is that since I only have 2GB of ram, maybe its messing it up once the drivers install? No clue, any ideas? I am unable to install Bootcamp 2.1 until after the reboot, at which point I cannot log in to do.