Mathew at Ribcraft USA ,is very helpful and they send out a nice info; package.Also they usually have a couple of Demo craft for sale at reduced prices. (Avoid the Mitigator, unless you have $125,000 to spare!!!
Also I would check out the Coastguard in your area.
All the CG units are getting equiped with the new Rigid Bouyancy boats (SAFE boats) and have a surplus of their older RIB's.
There is a nice one sitting unused in the parking lot of the CG station here in San Diego and would be sure to be asking if I was still in the market for a boat.(and best thing they come in Orange!!!! )
The Coast guard have a good web site, so check for local contacts in your area.