I just switched to a P4 3.0e system from my a64, I seems to run a little warm on stock cooling but nothing unexpected. I have it overclocked to 3.6ghz but I know it will go higher with more volts but my air cooling cant handle it. I would like to keep the cost down and wanted to know a cheap way to get into watecooling. I was thinking maybe aquariusII or evercool wc201 (can pick one up for $70 on ebay). Are these going to be better than decent air cooling? What else would you guys suggest? I only want to cool my cpu not my gpu so I dont know if that helps.