Originally Posted by fuzebox

There's different software you can get that will notify a central server every time the computer is turned on, with it's current IP address and even webcam shots if you have a builtin webcam, but unless you had that setup in advance, there's not much you can do. I don't know if these programs are available for OSX either.

Sorry to hear about the theft, having your laptop stolen sucks horribly, especially if it's your primary computer.