UPDATE:
Well, THAT didn't take long.
I found this website that explains very clearly how to disassemble the Ipod. They also sell every part you need to make minor and major repairs. They also offer upgraded batteries with longer life than original.
The "cost more than a new one to fix" line from the Apple wanker seems to be a bit overstated. New hard-drive for my Ipod = $89
I bet Apple pays even less for the HD, meaning that their line is just a lie meant to boost sales and nothing more.
Customer care, my ass.
Hopefully this site will be of use to other Ipod sufferers:
http://www.ifixit.com/Guide/iPod/