I have the lojack for laptops on both my laptop and now on my son's laptop that he took to school with him. Thankfully I have not had to use it but it gives me peace of mind knowing it is recoverable if needed.
As for the locks, I thought about getting one for my son's laptob but could not figure out how to put it on his laptop. The other proble is that there is really no place in his dorm room to secure it.