I'm working on the same thing Mark. I've got some ideas, but I'll wait to relate that til I can flesh them out.
I really hate to say this, but in our case I'm not sure anything but incredibly loud noise will work as a deterrent. Craig's List takes the pawn shops out of the equation, and I'm sure you know that Crystal Meth usage has really exploded around here. Rural Sheriff's departments will tell you that CM has greatly increased crime.
Evil Doers want things that can be turned quickly, and carried easily. Most rural property owners have some type of utility trailer, and that makes their job that much easier.
This is a tough nut to crack.
