This unique raft trailer by SporTrail is a very popular model.  Sporting a 7' x 12' deck, it will haul rafts up to 16' in length.  It includes a winch, full-width rear roller and spare tire mount, and allows for one-man loading of your raft.

Price:  $1,889

Raft Plus, with 5x12 enclosed compartment below the deck, has room to carry all your rafting gear, coolers, etc.  Price:  $2,499