PCPartPicker part list:
http://pcpartpicker.com/p/ZyNtNG
CPU: AMD FX-8350 4.0GHz 8-Core Processor ($169.98 @ OutletPC)
CPU Cooler: Phanteks PH-TC14PE_BL 78.1 CFM CPU Cooler ($59.99 @ Newegg)
Motherboard: MSI 990FXA-GD65V2 ATX AM3+ Motherboard ($119.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory ($87.99 @ Newegg)
Storage: A-Data Premier Pro SP900 128GB 2.5" Solid State Drive ($69.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($54.98 @ OutletPC)
Video Card: PNY GeForce GTX 780 3GB XLR8 Enthusiast Video Card ($280.25 @ Newegg)
Case: Thermaltake Commander G42 ATX Mid Tower Case ($44.99 @ Newegg)
Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($49.99 @ Newegg)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer ($14.99 @ Amazon)
Wireless Network Adapter: TP-Link TL-WDN3800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter ($31.51 @ Newegg)
Case Fan: BitFenix BFF-LPRO-20025B-RP 148.7 CFM 200mm Fan ($19.75 @ NCIX US)
Total: $1004.40
not sure if it needed an OS but its $4.40 over the budget I hope that's ok.