Im thinking of getting the MacPro 2.66 with the ATI Radeon X1900 XT grafx card. But i was thinking that the Ati was released in 2006 so it might not be a good idea get it now, should be kinda old by now. So whould it be better if i purchase the MacPro with the cheaper NVIDIA GeForce 7300 GT it comes with, and then, sometime later, if im not satisfied, i can spend about 250$ to get a replacement (those 250$ would be the price to pay for the ATI now). I take it that, a replacement card at that later time costing 250$, surelly would be better than the ATI Radeon X1900 XT that comes out now! 1. Please tell me what you think about this idea of mine and also... 2. Is this possible with MacPros? To get a grafx card from the market and just plug it in? Are there any matters of cooperation/conflicts with the MacPro?