I have some software on my computer now called Prey (http://preyproject.com/) which sits in the background and can be remotely activated when a computer is lost or stolen, it free and open source. If the thief connects the computer to the internet it can be triggered to take a picture if there is a web cam and it will capture other information like IP address etc that could be useful for law enforcement. I realize this info is a little late now, though thought I would throw it out there for everyone to be aware of.