I am a long time PC user and have converted to Mac with a MacBook this month. I am looking to purchase a MacPro, but would like a choice other than the stock video cards offered. My main question is, would I be able to install a BFG Tech Nvidia GeForce 8800GTS 640MB video card into the current MacPro? I have a self built gaming PC gaming rig and would love to make use of some things out of it for my future Mac such as the SATA drives and the video card. My first post here so some help would be greatly appreciated.