Here is my last.fm music library. last.fm is easy to join and enables you to upload your music collection onto its site. It collects images and information about your music. Tags enable it to suggest music you may like. So if I click fever ray it will play fever ray radio enabling me as much music in that style while i am in the mood for it. You can buy cds through amazon and mp3 from i-tunes. however there is a lot of music that can be downloaded for free onto your own library.
I am already thinking that this will change my laptop listening habits as i listen to playlists based on my own music choices. I am going to load last.fm on to my i-touch and can then play it thru the bose.
Here is wikipedia on last.fm