I have limited funds at the moment so i'm probably just going to order the most specced down mac pro available (probs a couple of 2.ghz, 160h/d) and then buy bits cheaper in the future. My biggest worry is the video card, the nvidia is basically a budget card, and I do like to indulge in a spot of gaming from time to time (in windows, this computer would take over from my pc). I'm not going to go for the more expensive ati card (cant afford it), but I no doubt will want to upgrade soon. Can I buy any PCIe card and stick it in? Or are drivers still a problem? Presumably a new card would work fine in windows, but if there were no drivers out for mac osx, would it work with (my fairly limited) demands? If you dont have a driver in windows it will work with any application still viewed in a window, same with a mac?