I have no Ipod (yet), but do use itunes. I use the airport express thingy to make the audio play through my home stereo. I have told myself no ipod until my whole library was imported. I have over 4000 songs, 300+ albums and counting. I just started sharing with my brother in law (he has a massive CD collection....he loaned me like 20 box sets to import as a start).
So much music, so little time.
Itunes really has allowed me to appreciate much more music than listening using cds.