AMD FX-8350, MSI GeForce GTX 670, Azza Hurrican 2000R - System Build - PCPartPicker - You could switch out the GPU to the 7950 if you desire.
Any reason you must go with AMD?
Re-use your HDD to save some money.
The Corsair SP2500s are probably one of the best speaker systems for $250.
I don't know a lot about monitors, but CNET reviews a ton of them. Go over there and select the one that fits your needs.