I read the article on the 64 bit capabilities of Snow Leopard on appleinsider.com It seemed to state that any of the old MacPros with EFI-32 would not be able to boot the kernel in 64 bit. I was hoping to take advantage of the larger memory spaces while running Parallels at the same time and eventually when Adobe gets around to making there apps 64 bit compliant. What chip on these motherboards prevents them from upgrading the firmware to EFI-64? If it is the graphics cards, I would gladly go out and buy something the replace the 7300 I have now. But most of those cards require EFI-64. Has Apple truly abandoned the early adopters? I never thought they would already be giving up on some Intel based Macs.