Video card question

[vulturesrow]

Ok my plan is to go somewhere like Best Buy and get a computer (desktop) on the cheap and then do some piece by piece upgrades using stuff that I have already or buying certain components. My biggest concern is video cards. How much am I losing if I got with say a Raedon 9600 vs. a Raedon X800. There is a big price gap. However if the X800 is that much better, I will spend the extra money.

Thanks.