I know video cards are discussed regularly here but I can never seem to find answers to my specific situation. Here's the deal: I have a new Mac Pro 8-core with the crappy 2600 card in it. The 2600 actually does fine for OSX since I don't often run core-intensive applications. I do like to game in Windows though and I happen to have a spare Asus 4850 pc video card. Here are the questions: - Can I simply plug the 4850 in the slot next to the 2600, or is it more of a process? I don't want OSX to see the 4850 at all and, vice versa, I don't want XP to see the 2600. - Will I be able to benefit from the 4850 in both Boot Camp and VMware Fusion? - Will I need to start worrying about the MP's power supply? I currently have added 2 hard drives, 8GB of ram, wacom tablet, firewave sound adapter, external hard drive, and am thinking about this card now. - If using the second card for windows only, can I put in any PC video card I want? The 4850 is handy because I have it already but I may consider selling and getting something like the 4870x2. In general, what's the process to adding the 4850 if it's possible and what am I in for? Thanks.