If you are looking for a site that has a good listings of used center
console, cuddy cabin and other small and mid-sized (kayaks, jon boats
from 12ft to 32 Center Consoles) check out the Classifieds he

http://www.tidalfish.com/classifieds/showcat.php/cat/4

The site as of this posting had 140 boats.

Posting your Used Boat if you are selling on is free for a basic
listing.

Good Fishing and Boating!