ipod battery replacement

Where is a good resource for ipod battery replacement? I have a older ipod original with the wheel?

Usually http://www.ifixit.com/ has what you need and the step-by-step guides to walk you through the replacement process. You could also send it to http://www.ipodjuice.com/

Also, understand there is a way that one can find out the value of an older ipod and laptop on the apple site. I cannot find it.

I don't know of any such information on Apple's website.

B-rock