Found this link on Popular Science where they teach you how to replace the batteries on the first generation iPod. I dont have problems with dead batteries yet but got to remember this url when it does give way soon.
http://www.popsci.com/popsci/computers/article/0,12543,588084-2,00.html
This link is even better… someone bought the new iPod mini and took it apart…
nangka.org 