i5 2500K and i7 2600K for CoD

[T}{OR]

Save your money and go with 2500k. 2600k is a waste of money, CoD wise. HT won't help you with CoD nor any game by that matter.

That or wait for Bulldozers which are due out in late June.

All manufacturers have released B3 stepping boards, for the money difference between 2500k and 2600k I would get a nice Gigabyte board (UD5 or UD7 if you intend to go CF/SLI). ASUS is reported to have many compatibility issues (just browse their forums). Not much of MSI fan, but they make good boards too.