I am an avid games and video cards are very important. Now that Apple is going to have more big names games on the mac having a good graphics card becomes even more necessary (not to mention being able to run windows). On the Apple store site at the build a powermac page it has different configurations for video cards. The two I was looking at was the 1X ATI Radeon X1900 XT 512MB (2 x dual-link DVI) and the 4X NVIDIA GeForce 7300 GT 256MB. I was wondering which is a better choice for gaming and if there were any other cards that I could use that are mac compatible that I should be looking at. With the 4X Nvidia, does it mean they are all working in conjunction or that they run independently and are there to run separate monitors. Thanks in advance.