Case Cooler Master Storm Stryker (White) ATX Full Tower Case $159.99
Power Supply Corsair 750W 80 PLUS Silver Certified ATX12V / EPS12V Power Supply $139.99
Drop to the i5 3570k, using money saved get a gtx 670, then get rid of the ZALMAN for a Hyper evo 212+ same price but better imo.
CPU: i5 3570k (the sweet spot, not too expensive yet highly capable)
Cooler: Hyper evo 212+ (cheap and more than effective)
Storage: 2TB western digital (More reliable and cheaper)
GPU: GTX 670 (Money saved why not treat yourself?)