Question on overclocking 8800 GT

Hey guys, I found a Galaxy Geforce 8800 GT for $230 + free shipping, so definately a good deal.

I'd like to buy this card because the 2007 VGA charts show this card overclocked can compete with the fastest GPU's on the market. Even without overclocking it's a good card for the money.

My question is, can any 8800 GT be overclocked, and is it relatively easy to do without spending extra $ on cooling? Are there stats or features I need to look out for when buying a 8800 GT? I.e. when I bought my 9800 pro I was told to make sure it had a certain bit # or clock speed because the 9800 pro had a slower and faster version. Anything like that on the 8800 GT?

Thanks!