Processor Fan: Asus Arctic Square (Socket 754/775/939/AM2) CPU Cooler - Best Processor Fan for C2Ds & P4s I reckon

I reckon this is the best processor fan for P4s and C2Ds, especially if you've overclocked them slightly to make them sing:

Asus Arctic Square (Socket 754/775/939/AM2) CPU Cooler

Price: £36.99

With four heat pipes, a PWM function that automatically adjusts fan speed according to CPU temperature and almost silent operation, this is by far one of the best processor fans on the market at the moment - AND IT'S AFFORDABLE (even if it is almost as much as the 3GHz P4 is now)!!!

Get from OCUK: Processor Fan: Asus Arctic Square