Here's a couple of nice ones at good prices...

http://seattle.craigslist.org/skc/hsh/4398228049.html ($50)



This is the smaller 18.5 in the kettle series ($80 retail).
It is rare to find one with wood handles that is almost new.
Weber went to plastic (glass-filled) handles several years ago.





http://skagit.craigslist.org/ppd/4397809555.html ($70)

This is the common 22.5 size with the lid therm and upgraded ash pot ($150 retail).
He is using a file photo in the ad.
I would ask for actual photos of what he's got.