I'm buying a new computer and I'm chossing the parts right now. For the graphics card they gave me these choices and these pricesses, and I need a second,or alot, of opinions: (1)the cheapest one that looks good: 64MB nVidia GeForce 4 MX 420 Graphics Card w/ TV-Out [add $70.00] (2)the most expensive, I doubt I'll get this one, but I would like to know why it costs THAT much. 128MB DDR ATI RadeonT 9700 Pro Graphics Card w/DVI and TV-Out [add $580.00] (3) This one looks expensive, but I've heard good things about it. 128MB DDR ATI RadeonT 9700 TX Video Card w/DVI and TV-Out [add $270.00] Now i would like to say that this is mostly for online games if it makes any different. Any comments are welcome.