ok so i got the new heatsink and two more case fans. I run around 60C full load, and 30C ildeing. now what program do you use to OC it. im thinking around 3.6Ghz to start
Overlocking is done through the BIOS. Increase the multipliers, core voltage and FSB. Some mobo's allow o/c'ing through software in windows, see if your mobo has this functionality (o/c software would be included with your mobo). If not, just overclock via the BIOS. It better, at least I like it better.
And you definitely want to get a better cooling solution. That Prescott will throttle even at stock speeds. O/C'ing it with the same cooling solution may even make it worse and could actually slow down performence.