what i dont understand is why everyone is telling him to buy a new pc, instead of build a new one. much cheaper that way.
ahem...
The best thing to do would be to build a new one, allstarshop.com has great prices, but if you don't feel comfortable building a pc I could help you get something in your price range, just pm me if you wish. I could get you a good pc from $500 to $1000 depending on how good of a system you want, and allstarshop has optional installation and windows install for a small price. They also have warranties for everything you get, and you have a 1 year return policy in case something doesn't work.
I kinda prefer making them too, it's cheaper and with allstarshop it's really good prices. The new pc I plan on building will cost about 1k and it'll be a system I won't have to completely replace for some time.