Nooooo!!!!!!! No need to do that!!!!!!! If you still have your music in your ipod you can fill a new itunes library with it!!! Just download copytrans http://www.copytrans.net
And do a backup to itunes of your ipod. IT will import all your songs, videos, podcasts, tv shows, ratings, playlists, play counts, etc... If I were you, I would even perform a full backup of my ipod just in case something like this happens again.