With editing, CPU is more important than the GPU, a gtx 690 will help the same as a 660 in editing programs. Gaming uses more GPU than CPU. So which is more important to you? more cpu cores, better editing, better graphics, better gaming. Let's try a happy medium :
PCPartPicker part list:
http://pcpartpicker.com/p/QlBS
Price breakdown by merchant: http://pcpartpicker.com/p/QlBS/by_merchant/
Benchmarks: http://pcpartpicker.com/p/QlBS/benchmarks/
CPU: Intel Core i7-3930K 3.2GHz 6-Core Processor ($499.99 @ Microcenter)
CPU Cooler: Corsair H100 92.0 CFM Liquid CPU Cooler ($97.99 @ Newegg)
Motherboard: ASRock X79 Extreme6 ATX LGA2011 Motherboard ($199.99 @ Newegg)
Memory: G.Skill Ares Series 16GB (4 x 4GB) DDR3-1866 Memory ($129.99 @ Newegg)
Storage: Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive ($126.96 @ Amazon)
Video Card: Gigabyte GeForce GTX 680 2GB Video Card ($453.98 @ Newegg)
Case: Fractal Design Arc Midi R2 (Black) ATX Mid Tower Case ($69.99 @ NCIX US)
Power Supply: Rosewill Capstone 750W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($114.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.96 @ Amazon)
Operating System: Microsoft Windows 7 Professional SP1 (OEM) (64-bit) ($134.99 @ NCIX US)
Total: $1848.83
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-04-13 01:42 EDT-0400)