I think it would be a lot more cheaper to build your own PC. You would save a lot more money if you do. But if you want to build one here are some parts. If not I will be looking on ibuypower for your parts.
PCPartPicker part list:
http://pcpartpicker.com/p/2BKci
Price breakdown by merchant: http://pcpartpicker.com/p/2BKci/by_merchant/
Benchmarks: http://pcpartpicker.com/p/2BKci/benchmarks/
CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($225.99 @ NCIX US)
Motherboard: Gigabyte GA-Z87X-D3H ATX LGA1150 Motherboard ($134.99 @ NCIX US)
Memory: A-Data XPG V1.0 8GB (2 x 4GB) DDR3-1600 Memory ($79.99 @ Newegg)
Storage: Crucial M500 240GB 2.5" Solid State Disk ($147.98 @ SuperBiiz)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($82.99 @ NCIX US)
Video Card: EVGA GeForce GTX 780 3GB Video Card ($509.99 @ SuperBiiz)
Case: Fractal Design Arc Midi R2 (Black) ATX Mid Tower Case ($109.99 @ NCIX US)
Power Supply: OCZ ModXStream Pro 600W 80+ Certified Semi-Modular ATX Power Supply ($75.98 @ Newegg)
Total: $1367.90
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-01-18 01:26 EST-0500)