My brother runs a small cooperative restaurant that does a lot of community work. A few months ago someone kicked in their door and stole their computer. They wrote it off as a fluke, but just last night someone kicked in their door AGAIN and stole their replacement. So now I'm making it my personal mission to find a way to catch the people, and we're willing to sacrifice a third computer to try and do it. I'm looking for ideas ... At the moment I'm leaning towards something like http://www.gpstracks.com/ . The phone home is an option (is there any software that already does this?) but someone could just reformat and get around it. Anyone have some clever ideas?