Hi Folks, I have just got myself a Mac pro 3.1 with 2 x 2.8GHz quad, 8Gb 800MHz ram) and enjoying it. It's not the best but I hope to speed it up a bit! I have put OS Lion on an SSD that helps. I read somewhere that mountain Lion makes better use of available RAM. My video card is a NVIDIA GeForce 8800 GT 512 MB, it seems fine but there again I'm not a super game player, other then COD and the like, that I play on a PC. (Mac versions seem rare or just too expensive) What would be a better video card?? I note that some of the later Mac pro's 4.1-5.1 go back to using a single CPU! Were the early quad processors, just 2 dual cores mangled together? do they run as fast? They seem to take faster ram, it's easier to get too!! So before I start messing around with the inners too much do I stick with what I have or go for something newer!! I do a fair bit of RAW photo editing, etc. Run Windows 7/64bit on another SSD. Any advice or help very welcome.. Regards Mel.