Could somone please re-inforce my confidence here, I plan to get a 2600mobile chip with a NF7-S, BUT for £14 more i could have got the 2800 64bit chip with a mobo, I ordered a swiftech 6002 waterblock for a k7 socket. What I want to know is, is there much differece between the 64bit 2800 and an overclocked 2600? or have I just wasted my money on the swiftech?