security for laptopsBasically, there lots of ways to provide laptop security, I suggest you consider all them.
1- cable lock, there are a bunch. These will protect against the opportunistic thief but not someone determined to have your machine. Get one with the motion detection and the lights and the loudest dang alarm you can.
2- make sure your machine is passworded, from the BIOS on up. That the machine doesn't boot will deter some of the folks that have the time to decide if they want it or not.
3- back ups, it won't save your machine, but it could save your rear, back up everything regularly, at least once a week but more often if possible. At least you will then be able to get back to it when you replace the machine with the funds provided by:
4- insurance, get a good insurance policy.
5- try one of the tracer programs, they call home when the machine is connected to the internet and let you know where it is. They have a good return rate provided the thief didn't replace the hard drive.
6- make it yours, one reason laptops are so easy to steal is they all look exactly the same. Customize the appearance. Check the paint jobs in some of the threads in these forums. But make it yours and yours alone. That includes etching your Social Security number or some other identifying item in both places that are easy to see and ones that nobody will look for.
7- This is a bit extreme, but it should provide excellent security and a lot of other benefits as well. Simply have the laptop grafted onto your body. If you can work out the nervous system interface, hey, it won't matter what screen or mouse or anything else you get.