G.Skill Ripjaws X F3-12800CL9D-8GBXL (2x4GB) DDR3
or
Corsair Vengeance CMZ8GX3M2A1600C9 8GB (2x4GB) DDR3
Intel Core i5 3570k
ASRock Z77 Extreme4-M Motherboard
Seagate Barracuda 500GB ST500DM002
Antec High Current Gamer 620W HCG-620
Sapphire Radeon HD7950 3GB with Boost
or
Corsair Vengeance CMZ8GX3M2A1600C9 8GB (2x4GB) DDR3
Intel Core i5 3570k
ASRock Z77 Extreme4-M Motherboard
Seagate Barracuda 500GB ST500DM002
Antec High Current Gamer 620W HCG-620
Sapphire Radeon HD7950 3GB with Boost