Hi, I'm looking at purchasing an older Mac Pro 3,1 with some lack luster components. It only has 2GB of RAM (Apple FB ECC Ram), however I have 8GB of DDR2 RAM from a PC, would I be able to use this until I purchase some Apple RAM upgrades? The cost for the RAM from macmemory.com isn't super bad at all, I'm buying a house and will be closing in the next 45 days so, the cheaper the better, for the mean time). The Mac Pro has a very dated video card and I know with Lion and the new Nvidia drivers, it's possible to use a ton of different Nvidia cards. I have an Nvidia GTS 250 (dual DVI) 1GB PCIEx16 card that I'd love to just throw in there for the mean time. Two questions about this, would I be able to install Lion via USB stick on this video card? And will it be fine with acceleration, sans boot screen? With the EFI64 of the 3,1 am I future proofed for Mountain Lion?