WTB PC w/ excellent graphic card already installed, but how?

I don't seem to be able to own a computer for more than two years before it breaks. Usually due to catching a virus. One PC simply melted inside. All of it is very tiring but still I buy new ones for the same reason I aways have. It costs to much to repair a PC. If I'm going to pay that much in repairs I might as well spend an extra $100 for a new one. With repairs they charge whether or not they fix it right. One repair shop charged my roommate $300 and the pc was just as broke when he got it back.

So my computer is broke and I'm at a dilemma - again. I'm a gamer. I want a PC for gaming. I want it cheep because it will prob die in two years and I'll just be buying a new one.

Where do I get a gamers computer??? I would really rather not buy a regular and get stuff installed or special factory order = both end up costing me twice as much as a regular pc. If I have to I'll suffer using a regular pc.

But isn't there anyone out there that sells gamer's computers? All ready to go?