The guide is designed to show someone how to make a portable from scratch, and is a detailed and easy to follow guide.
The guide is here:
http://www.instructables.com/id/How-to- ... -a-batter/
If you would like to vote for it on their site in the next day or two that would be awesome (i'd love to win a prize!), but obviously up to you if you want to or not:
http://www.instructables.com/contest/ba ... ow=ENTRIES
Anyway, here is a pic of the system, more pics on the guide of course; loads in fact:
I'll be interested in your comments too.