These will keep you busy for a while. The last one, Maston's, doesn't have many links on their page, but he's a great guy to order stuff from. I ordered a bunch of stuff late on Wed and it arrived Friday morning.
http://www.rocketcityracing.com
http://www.bonzisports.com
http://www.aeromarinerc.com
http://www.seaducerboats.com
http://mastonsrcmarine.com