carefull!!! I know all you overclockers can +rep me on this one - overclocking is a very dangerous process, though it can produce wonderfull after-effects, you must take many pre-precautions:
Make sure that your cpu can handle higher voltages.
Get a good cooling system, a liquid cooled would be good.
RESEARCH - the best way to learn how to overclock your pc is by reading about other peoples mistakes! lol sad but true.
In the eyes of Bill Gates, the open source world seems un-activated...