Wired News: Pumping Up the Power of the IPod
A Wired Magazine report on iPod battery replacement for 1 & 2 G iPods. They also mention some repair services. Apparently the firewire connection in 1/2G iPods was badly designed and fails after > 1 year (out of warranty) of use. The repair is difficult. Interestingly one of my 3 replacement 3G iPods from Apple (AppleCare) had a bad firewire port -- you could charge it but not sync it.