Given the loss of my wife's laptop this week, and the fact I just ordered a black macbook replacement due to arrive in a couple days, I am responding to this theft in the manner any person would: irrational paranoia. I've developed a 3 point plan of sorts: 1. a security cable. is kensington the best for this? i would think the combination is better than the key, should the key ever be lost. 2. software: i've heard all sorts of stories about people that have scripts that tell their macbook to take an isight photo or send an sos signal whenever it gets net access. what's the best package for this? Or, anyway to make the system go into total lockdown? 3. hardware (most important): I want to install a GPS tracker in the new laptop. ideas?