I currently have an ageing G4 for graphics work and a separate gaming PC. Can I combine the two with a new Mac Pro? If I purchase a a standard 2.66 quad-core Nehalem with the GT 120, can I remove my PC graphics card (Nvidia 8800GT) and install it in the Mac Pro alongside the 120? I know that the 8800GT won't work in OS X, but I'm assuming that it will be recognised in Vista 64 via Boot Camp? Does the 8800GT have to be installed into a specific PCI-e slot and will it have enough power? Thanks.