Voila:
PCPartPicker part list / Price breakdown by merchant / Benchmarks
CPU: AMD FX-8320 3.5GHz 8-Core Processor ($149.29 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ OutletPC)
Motherboard: MSI 970A-G43 ATX AM3+ Motherboard ($69.98 @ SuperBiiz)
Memory: A-Data XPG V1.0 8GB (2 x 4GB) DDR3-1600 Memory ($68.99 @ Newegg)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($88.97 @ OutletPC)
Video Card: EVGA GeForce GTX 770 2GB Superclocked ACX Video Card ($309.99 @ Newegg)
Case: NZXT Source 210 (Black) ATX Mid Tower Case ($37.99 @ Micro Center)
Power Supply: Corsair Builder 500W 80+ Bronze Certified ATX Power Supply ($29.99 @ Newegg)
Monitor: Asus VE247H 23.6" Monitor ($119.99 @ Newegg)
Total: $905.17
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-06-08 13:41 EDT-0400)
You could get a 280x for the GPU if you prefer AMD instead. Performance will be pretty similar.