I have just heard that according to Intel the nextgen "Sandybridge" CPU will not be overclockable at all(unless you pay the premium for the unlocked version or Special K chip also known as the Kelloggs chip) as they are putting all the busses on one clock and so any interference will make the whole system unstable. This is bad news for the enthusiast market as it will mean either a switch to AMD(hopefully Bulldozer will come good) or pay Intel's exhorbitant premium price for the unlocked version.