PCPartPicker part list: http://pcpartpicker.com/p/pyrPLk Price breakdown by merchant: http://pcpartpicker.com/p/pyrPLk/by_merchant/
CPU: Intel Core i5-4590 3.3GHz Quad-Core Processor ($159.99 @ Micro Center) CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($28.98 @ OutletPC) Motherboard: MSI Z97 PC MATE ATX LGA1150 Motherboard ($89.98 @ OutletPC) Memory: Kingston Fury Black Series 8GB (2 x 4GB) DDR3-1600 Memory ($71.99 @ Amazon) Video Card: Asus GeForce GTX 970 4GB STRIX Video Card ($328.99 @ Directron) Case: NZXT S340 (Black) ATX Mid Tower Case ($67.99 @ SuperBiiz) Power Supply: Corsair Builder 430W 80+ Bronze Certified ATX Power Supply ($19.99 @ Newegg) Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($88.98 @ OutletPC) Total: $856.89 Prices include shipping, taxes, and discounts when available Generated by PCPartPicker 2015-03-06 12:56 EST-0500
Much better build. In your budget, even with OS. @ExcaliburMC