With a $1000 to spend I would go with something like this:
PCPartPicker part list:
http://pcpartpicker.com/p/2w9QL
Price breakdown by merchant: http://pcpartpicker.com/p/2w9QL/by_merchant/
Benchmarks: http://pcpartpicker.com/p/2w9QL/benchmarks/
CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($229.99 @ NCIX US)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Microcenter)
Motherboard: ASRock Z87 Extreme6 ATX LGA1150 Motherboard ($169.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory ($68.00 @ Newegg)
Storage: Western Digital RE3 1TB 3.5" 7200RPM Internal Hard Drive
Video Card: Asus Radeon R9 270 2GB Video Card ($185.66 @ Newegg)
Power Supply: NZXT HALE82 550W 80+ Bronze Certified Fully-Modular ATX Power Supply ($69.99 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 8.1 - OEM (64-bit) ($94.98 @ OutletPC)
Total: $863.59
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-01-05 15:15 EST-0500)