$500 OBO.

CPU: FX-8320
Motherboard: Gigabygte 990FXA-UD5
RAM: Corsair Vengeance DDR3 32GB (4x8GB DIMM)
Case: Fractal Design Define R4
Cooler: Corsair H110
Power Supply: Thermaltake Toughpower 850W
GPU: Gigabyte Radeon HD5550