Re: looking to build wow computer
World of warcraft @ Max?
i7 would be way overkill. i5 2500k would be way more than enough. As for graphics, a GTX 460 or Radeon 6850 would be plenty. Save some money on the case by goingfor a mid-end one instead of high end, and get something like a Corsair CX600 to power it all. Look into Asus or MSI motherboards with support for Sandy Bridge.
alternatively, look at the Phenom II X4 955 and something like an Asus AM3 board with the 880G chipset.
EVGA SLI Micro Z68 // Intel i5-2500k // 8GB Corsair Vengeance 1866MHz // Overclocked 2GB MSI R9 270X // Corsair Carbide SPEC-03 // Kingston Hyper-X 120GB // 2TB WD Green + 500GB WD Black