overclocking intel core duo e6600 series

Hey i read the post you had on the e6700 series chipset and i was wondering if i were to follow the same overclocking instructions that you had for that chip if it would work correctly for me?? here is the link to the article.
http://www.techspot.com/article/13-intel-core2duo-e6300-e6700-overclocking/

I am fairly new to overclocking, have done tons of research, and gotten different answeres and misconceptions on OCing. A question that i have never really gotten a clear answer on is,Does overclocking reduce the longevity of the processor tremendeously?

And is there a smiliar guide to the link above specific for my processor

Do you have a stock cooler?

First off it reduces the CPU life depending on your coller, but I think in 10-15 years the cpu will be obsolete?

What motherboard do you have?
Is your computer a custom build, or is it an OEM like Dell, GateWay, HP, etc?
What ram do you have?
What PSU do you have?

i have an asus p5b deluxe /w wifi motherboard.
My computer is a custom build.
I have 2, 1gig sticks of gskill ram.
and i have a intel core 2 duo 6600series

I have a zalman http://www.newegg.com/Product/Product.asp?Item=N82E16835118223
is the link, my cpu temperature with no load is 25degrees celcius, and with load its at 32 degrees celcius.

What's the point of overclocking this cpu? I could see a less powerful one, but that will handle pretty much anything you throw at it.