16Gb of ram is overkill, 8Gb is more than enough for gaming. Drop to 8Gb of ram and use the extra money for a faster gpu.
PCPartPicker part list:
http://pcpartpicker.com/p/2dzM6
Price breakdown by merchant: http://pcpartpicker.com/p/2dzM6/by_merchant/
Benchmarks: http://pcpartpicker.com/p/2dzM6/benchmarks/
CPU: AMD FX-6350 3.9GHz 6-Core Processor ($119.99 @ Newegg)
CPU Cooler: Cooler Master Seidon 120M 86.2 CFM Liquid CPU Cooler ($59.99 @ Newegg)
Motherboard: Gigabyte GA-990FXA-UD3 ATX AM3+ Motherboard ($129.60 @ SuperBiiz)
Memory: Crucial Ballistix 8GB (2 x 4GB) DDR3-1866 Memory ($64.99 @ Newegg)
Storage: Samsung 840 EVO 120GB 2.5" Solid State Disk ($85.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($54.99 @ Newegg)
Video Card: Gigabyte GeForce GTX 770 2GB Video Card ($324.98 @ SuperBiiz)
Case: Cooler Master Elite 431 Plus (Black) ATX Mid Tower Case ($60.98 @ Newegg)
Power Supply: Corsair Enthusiast 650W 80+ Bronze Certified Semi-Modular ATX Power Supply ($99.99 @ Amazon)
Total: $1001.50
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-02 14:34 EST-0500)