I know a little about Overclocking but have never done it. I would say I'm a technical person, I'm currently on a computer forensics course at Uni. I know FSB front side bus, but that's it. Processors I know barely anything, everything else I'm a wizard!
So, let's start with the basic. Use Google for learn a little about the difference between overclock using FSB and multiplier, both are used but one is more easy than other. A quick help, with one you only change the CPU's frequency while with the other you change some other frequencies apart of your CPU.