I had my iPod Touch 3rd gen jailbroken to use the mirroring option at work. I have since been able to get a 5th gen (via work) so I'd like to restore my 3rd, which is my personal device. As such, it's full of music. Unfortunately, the computer which I had used to upload all of the iPod's music has become unusable. All of my music is currently and exclusively stored on that iPod (except for purchased iTunes ones, obviously). Naturally, I would like to have all my music stored on my new computer's iTunes and also only iPhone. However, the only way to sync my music is for my iPod to not be jailbroken. And the only way to undo the jailbreaking is to restore my iPod, which would lose all non-purchased items. Advice?