This looks like it will be SUPER fun to set up 😉
The idea: create a little script which will (figuratively) “phone home” when the computer is stolen. This can be installed into a hidden location on the notebook and instructed to run everytime the machine starts up (a (discreetly named) entry in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run or something should do the trick).
As for the script, there’s only about a million ways of writing it but here’s a “hello thief” sample in python:
tkMessageBox.showwarning("This Machine has been stolen. Please alert the authorities");
Which basically checks for the file “http://www.yourweb.page/stolen” everytime the machine starts up. If present and containing the trigger phrase “stolen_stolen”, the script pops up a message warning the user (or delete key files, e-mail the IP to you, etc etc)