I remeber those Kensington locks being $40. You can get Belkin ones at the site below for $21 which is slightly more reasonable. There is also an off-brand model for $16 on that page. I'm thinking of getting the Belkin with the combo lock. Anybody have it? Like or dislike?

http://www.provantage.com/scripts/go.dll/e23009_14/fp_71302.HTM

EDIT: On closer inspection, that cheaper one is also by Belkin, but it is not a laptop lock in the traditional sense