Mr. Clean (program) killed my music files!

[supergod]

I used the program Mr. Clean on my computer to fix aliases yada yada on my computer and left the program on while I was out because it takes so long. I get back and find that the program is done and that my dad has emptied the trash. I open up iTunes and find that though I still have my playlist and such, the actual music files have been deleted totally from my computer. Mr. Clean deleted my music folder and than my dad accidentally emptied the trash so now I'm minus 5 gigs of music. Does anyone know any way to get back lost music files (I know it can be done somewhat with text documents)? Any programs or tips or anything, I don't want to have to go about re-downloading 5 gigs of mostly rare music.