Man that's really too bad. I've had a couple things stolen from me, it was just expensive stuff though, not anything with sweat equity. I've been able to mentally write the loss off pretty quick, but I can't shake the feeling of wanting to curb-stomp the mofo. I hope you manage to kick that feeling, I haven't found it that pleasant.
If you do want to curb stomp a mofo (the phrase "curb stomp a mofo" is slang for "report the crime to the proper authorities") I wish you the best of luck and great deviousness.