OK, either build it yourself or get a Maingear PC. Maingear is the BEST in service, price, and performance. I configured this:
Asus P5N-E SLI
WD Caviar 320MB w/ 16MB Cache
Flash Card Reader
Vista Home Premium
1 Year Warranty
For a total of 30 cents under $2000.
This is your best bet if you want your computer made for you. Superb wiring, world-renown support, all the good stuff. Still don't believe me? Review!
Making your own isn't too difficult, many have done it, and is cheaper. Plus, you can overclock. (On their F131 line, they will overclock the GPU and CPU for free!)
1 Year Maingear Warranty