If your songs are copy protected (aka DRM'ed) iTunes purchased tracks then burn to audio cd and rip them in your chosen format (mp3, wma). If they are un-DRM'ed AACs (if you had ripped your cds into AAC or purchased iTunes Plus tracks), then no conversion necessary as the Zune supports this format.
Hello, I have been mostly using Itunes for my music organization. But now that i have seen the light, I have bought a Zune. My question: Is there any easy way to convert your Ipod/Itunes music into something that the Zune can use and play?