Replying to Well crap.

I sat on my ipod and broke the screen... my computer wouldn't recognize it when i would plug it in.. so i paid 100 bucks to have this fixed.  all my music is on my ipod.. i don't have any on my computer.  i got it back, and i wanted to put the songs onto itunes and before i could tell it not to, it started synching my ipod to the itunes (which had nothing on it).. so now my ipod has half of the songs it had 10 min ago.

There are softwares that can go in and recover those files right?  Any of you kids know of some good free ones?

I've got a mac.