Download CopyTrans TuneSwift: http://www.copytrans.net/copytranstuneswift.php
In this video I review CopyTrans TuneSwift, a great program that allows you to:
Backup your entire iTunes Library including Music, Videos, Apps and iPhone and iPod touch Backups
Restore the backups made by TuneSwift
Transfer your iTunes Library from your Windows computer to another Windows or Mac OS X computer