Cooling things down

Hi guys,
I'm looking for a better cooler for my P4. The out of the box fan that came with it is, I'm afraid, not up for the task. Temps are running a little high while running FS or similar 'heavy' programs. Temperatures go up to 70C/158F. Also I would like the noise that fan is making greatly reduced. So what do you recommend for a good, silent cooler?
Crash
I'm looking for a better cooler for my P4. The out of the box fan that came with it is, I'm afraid, not up for the task. Temps are running a little high while running FS or similar 'heavy' programs. Temperatures go up to 70C/158F. Also I would like the noise that fan is making greatly reduced. So what do you recommend for a good, silent cooler?
Crash
