I've been going at it for awhile finding the best parts and this is what i came up with.
(I was on a 600-650 budget)
Link: http://pcpartpicker.com/p/vpcY
-Intel Core i3-3220 3.3GHz Dual-Core Processor
-ASRock Z75 Pro3 ATX LGA1155 Motherboard
-Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory
-Western Digital Caviar Blue 1TB 3.5" 7200RPM Hard Drive
-EVGA GeForce GTX 660 2GB Video Card
-Corsair 300R ATX Mid Tower Case