Built Computer, about $800
---Specifications if you are curious---
- GTX 260 Core 216 SC (or SSC if it comes back in stock)
- Core 2 Quad 2.66ghz Q8400
- 500gb Harddrive
- 750 wat powersupply
- 4gb DDR2 Ram
- 7 fans :D
EDIT: For people who don't know little or nothing about Hardware. It will be able to run L4D1 and 2 with everything maxed out even 16xAA, with an average of 70-80fps. Run Crysis everything maxed out except only 4xAA with about 30-35fps.