You can do a bit better for $1k
PCPartPicker part list:
http://pcpartpicker.com/p/DE3Z
Price breakdown by merchant: http://pcpartpicker.com/p/DE3Z/by_merchant/
Benchmarks: http://pcpartpicker.com/p/DE3Z/benchmarks/
CPU: Intel Core i5-3470 3.2GHz Quad-Core Processor ($149.99 @ Microcenter)
Motherboard: ASRock H77M Micro ATX LGA1155 Motherboard ($69.99 @ Newegg)
Memory: G.Skill Sniper 8GB (2 x 4GB) DDR3-1600 Memory ($39.98 @ Outlet PC)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($75.98 @ SuperBiiz)
Video Card: Sapphire Radeon HD 7870 XT 2GB Video Card ($244.99 @ Newegg)
Wireless Network Adapter: Rosewill RNX-N180UBE 802.11b/g/n USB 2.0 Wi-Fi Adapter ($16.99 @ Newegg)
Case: Cooler Master HAF 912 ATX Mid Tower Case ($56.21 @ TigerDirect)
Power Supply: Corsair Builder 500W 80 PLUS Bronze Certified ATX12V Power Supply ($49.99 @ Newegg)
Optical Drive: Samsung SH-224BB DVD/CD Writer ($17.99 @ Newegg)
Monitor: Asus VH236H 23.0" Monitor ($157.98 @ SuperBiiz)
Total: $880.09
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-02-15 02:01 EST-0500)