Wondering what kind of video card you guys/gals are using for your gaming PC's? Will be playing games like Halflife 2, Doom3 and rome total war. I have heard some brands are better than others at certain games, I just want something that is good all around. I dont know of any other brands besides ATI and nVIDIA so I would like to stick with these. I am looking to spend around $450. By the way I will not be building this computer someone else I know is, (I know I sound like a newb, it is because I am one).