Here is a solution to stop the worry about your laptop being stolen. There is a free software package calld "Prey". If you install Prey on your laptop, ss soon as the thief turns on the laptop, Prey will try to broadcast its location. Even if it isn't connected to the Internet, Prey will try to find the nearest open hotspot.
All you need do is send the laptop a message from your phone or another computer.
You can even activate the Webcam to get mug shots of the criminal.