hey sorors, i'm on my second ipod and i love it. my first was a 10GB 3G pod--touch wheel. my second one is a 30GB 4G (photo) and i love that one as well, especially the capacity and playing solitaire in color
part of me wants the newest one, but it's definitely not a priority. i gave my old one to my husband and now he's addicted. i just love passing the apple love. i also dig dig dig my ibook, but that's a different thread
MAC ROX!
here are a couple links that will help you with your battery questions:
http://docs.info.apple.com/article.html?artnum=62018
http://www.apple.com/batteries/ipods.html
http://docs.info.apple.com/article.html?artnum=61434
ilounge.com and the apple site both have great resources for getting to know your pod.