Whenever I go to buy a processor for my computer I'm always cheap and get the slower one. But I want the speed, or close to it, of a 3.2GHZ P4 without the cost of it. Does anybody know how fast I can overclock a Celeron to? Do I need an expensive cooling system for it, or does a stock heatsink and fan and some thermal grease that came with the cpu do the job for cooling if I overclock it? If you've had an experience with ocing a celeron please share it. I'm fairly new at building computers, and I don't know if I should oc because it could ruin my cpu.