Johnny, while at the ATA show I saw a heavy duty metal box that you can put your trailcam in. Somebody would really, really have to want to take your camera if you had it locked up in that puppy.
I can't remember the name of it and I'm still up here in Chicago so I'll post the info when I get home.
It's msrp is around $99 but if I were putting a decent trailcam out, I'd probably buy one.