Ok, first off... nice link per!
However, I think this requires some personal attention.
Dingle, I do believe that you want to OC yes?
Ok, well then here is how my dear boy. Listen well.
First off, what kind of CPU do you have? If it is a celeron, it isnt worth it. Anything else, go for it. Also, is your PC made by Dell, HP, Compaq, Gateway or any company similar in fashion? If so, you cannot OC anything at all!
Next, what type of cooling do you have? In order to OC, you need good cooling. A simple stock fan will OC a little bit, but for a good OC, you need GOOD cooling.
Excellent air cooling is good for a 10-15% OC, and for above 20% OCing, I recommend liquid cooling. For above 50% OC, you will need phase change or pelitier cooling my friend.
Next, who makes your motherboard, what is its highest supported front side bus (FSB) speed setting available, and is your CPU multiplier unlocked or locked?
After you get all these questions answered, we can move on.