gaming pc build-$800

Something around those lines

http://www.newegg.com/Product/ComboBundleDetails.aspx?ItemList=Combo.1050232

+

http://www.newegg.com/Product/Product.aspx?Item=N82E16814131477

+

http://www.newegg.com/Product/Product.aspx?Item=N82E16832116986

Something like this:

Motherboard

http://www.newegg.com/Product/Product.aspx?Item=N82E16813157304 $85

CPU

http://www.newegg.com/Product/Product.aspx?Item=N82E16819116506 $195

GPU

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102948 $150

Hard drive

http://www.newegg.com/Product/Product.aspx?Item=N82E16822148840 $90

Case

http://www.newegg.com/Product/Product.aspx?Item=N82E16811147060 $50

RAM

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231428 $40

DVD burner

http://www.newegg.com/Product/Product.aspx?Item=N82E16827136247 $17

Power supply

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139028 $70

Windows

http://www.newegg.com/Product/Product.aspx?Item=N82E16832116986 $100

I really like the build that matrixian put together. I might change one of 2 things, but that's a really good build for $800. I think you'd be very happy with that for gaming and any other uses.