Man, it's really weird that you mention that! I stole a car tonight, and boy was I surprised that somebody left an expensive cell phone and a GPS in it. Bonus!

Oh, wait, what kind of car did you say you drive?

:P

Sorry, I don't know what web site to point you to...
This search should yield a few though:
http://www.google.com/search?hl=en&q...ack+cell+phone