One of the greatest new features I am starting to enjoy on my BlackBerry Tour is the ability for it to play multimedia files and specifically audio (music).

You want to migrate from the iPod to the Zune but the main reason you haven't made that jump is because you have your iTunes library. I'm sure that's a very common reason for not coming over to the Zune world. (Ok, maybe not, but I'll maintain my delusion.) This is a serious issue though and if you do want to change platforms, then your only options are mostly time consuming and wasteful.