In order to become more aware when it comes to theft(since I come across a lot of suspicious people in my line of work), I'd like to check the machines to make sure they haven't been stolen. I found this site, but I'm not sure how good their database is:
http://www.stolencomputers.org
Any other suggestions or places I should try? Chances are, most people who have their computer stolen aren't going to report the model and serial number...but you never know.

KG