My home network is very secure, but my school's wireless network is open, which makes it vulnerable to wireless sniffing (e.g. with Firesheep). I just discovered the Location feature and I think it's really neat, but it doesn't make obvious a way to automatically switch Location based on which wireless network is currently connected.
Is this something which it is capable of, and if so then how do I set this up? Otherwise I guess I will use a program like NetworkLocation to do this; I'd just like to avoid paying for a program if possible.
(I'm using the latest Snow Leopard 10.6.5)