I know there were some initial problems with gaming on Mac Pros (don't remember the issues)...just wondering if a well equipped Mac Pro can stack up with a well equipped Dell for Windows gaming. After seeing my MacBook, my wife would like me to replace our old Dell desktop with a Mac Pro. It was mainly used for Windows gaming though. If I can kill two birds with one stone, I'll go with an Apple. Does anyone have experience with Windows gaming on a Mac Pro? Any drawbacks compared to a Dell for gaming for instance? And did I see that you can get Mac Pros equipped with 4 nVidia video cards? Can games actually take advantage of that?