My setup is
CPU: Intel Core i5-2500K 3.3GHz
Motherboard: Asus P8P67 PRO (REV 3.1)
Memory: Corsair Series 16GB (4 x 4GB)
Power Supply: Cooler Master 850W ATX12V / EPS12V
Monitor: Asus VH236H 23.0" Monitor and another dell one that is 22 inches.
I play Dota 2, Diablo 3, Rage, Batman, and metro 2033.