http://www.badgerairbrush.com/garagesale.htm
I picked up a 200NH for $34 shipped and went back later for a 155 Dual action for $44 shipped. Just the brush and a manual though, no accessories (I already had the bottles, hoses, etc).
Mine were marked with some art company's name, but looked brand new and work perfectly.
(Also picked up a pack of those cool bottle lids with eye droppers in them - at the bottom of the page)