I've learned from this same situation....use an external backup (or two, I've seen one of those fail too)...
Ok..so now I know why the mulligan wasn't banning much today. lol Guess we'll have to give him a break for his kindness.
If you're able to get online at all, try an online storage service. I use
Box.net | Online file sharing, content management, collaboration
They usually give you a free trial period. I'd hate to lose all my music.
Good luck!!!