would be better if folks didnt buy this closed/drm/DMCA/proprietary crap in the first place...
note for those who already have an ipod head on over to
www.rockbox.org and replace the firmware with something usefull... as for itunes... convert your collection then uninstall it...
as for converting from AAC (mp4/m4a and whatever other container format it can be held in) to mp3 it would be better just to unlock the protection and keep the original encoding... transcoding a lossy format to another lossy format (esp mp3) is a bad idea...