With my new barebone kit I purchased from Tiger Direct, I'm noticing the video card has been having trouble competing with newer games such as Fallout 3 and Grand Theft Auto 4. For the past day and a half, I've been looking for somewhere to purchase a Radeon card, specifically from the HD 4000 series. My original thoughts were a 4850, or a 4870, but I see most places charge $130+. My current budget is $90, though I'll more than likely be able to get more from gifts, or working. Any ideas?