KavaTunes will let you build a website that looks and works just like iTunes. You can have all of your music and playlists anywhere you have an internet connection.
It’s also a fun way to just show what is in your library. You can set a preference to have your iTunes collection on the site, but not have any songs playable. So, if you’re a DJ and want to show potential clients what you have to offer, you can send them to the site.
Kavatunes is $35 and can be found on the KavaTunes site.