If you are looking for good bang for buck. Consider these specs: Core i5 2500k, ASUS P8P67 Pro motherboard, 4GB RAM (you decide on brand, depending on what you wish to pay. Best Makes that i know of: Corsair Dominator for extreme performance, G.Skill for good price/performance, Kingston for reliable budget RAM and OCZ Reaper for highest quality) Windows 7 (Home premium or higher) 750/800/850+ PSU (Antec and Corsair are two brands i strongly recommend) GTX 560/ ATI 6950. GTX 560 has slightly less performance than the 6950 in some games, but really holds its own in heavy DX11 rendering (I am talking about maybe 2-5 FPS less than the 6950, so I recommend the 560 for driver support and future proofing.) . HAF-X/NZXT Phantom are some cases that are really good. But of course there are cheaper options. The lga1155 range may limit you to choice, but sandy-bridge is an excellent CPU. The i5 2500k is definitely the best price/performance chip in the range. For Hard drive, look at the new Western digital SATA 3 6GB/s drives, they are really well priced. I picked one up recently and it is incredible. Loads super fast. The other components you can decide on depending on price. I hope this helped you.