There are many options for your build, but I have listed some basic component parts here. Let me know if you are interested in anything else, such as running RAID for your HDD's, an aftermarket heatsink, etc.
CPU:
http://www.newegg.com/Product/Product.as...6819103808
GPU:
http://www.newegg.com/Product/Product.as...6814130591
RAM:
http://www.newegg.com/Product/Product.as...6820231277
Motherboard:
http://www.newegg.com/Product/Product.as...6813131402
DVD/CD:
http://www.newegg.com/Product/Product.as...6827135224
HDD:
http://www.newegg.com/Product/Product.as...6822152245
Case:
http://www.newegg.com/Product/Product.as...6811129042
Total: $730
CPU:
http://www.newegg.com/Product/Product.as...6819103808
GPU:
http://www.newegg.com/Product/Product.as...6814130591
RAM:
http://www.newegg.com/Product/Product.as...6820231277
Motherboard:
http://www.newegg.com/Product/Product.as...6813131402
DVD/CD:
http://www.newegg.com/Product/Product.as...6827135224
HDD:
http://www.newegg.com/Product/Product.as...6822152245
Case:
http://www.newegg.com/Product/Product.as...6811129042
Total: $730