I have bought several things from
www.rangevideo.com and have had excellent results from them. I also got a pair of video goggles that were bad, range video refunded the money for them with just an email and sending them back. Shipping is fast, and he sells good stuff !!! I recommend them highly.
As far as the best video camera you can get for your plane, I like the KPC-650, its to big for a small electric, but if you have a .40 sized glow plane, its great
Much better picture, color, and light handling than anything else I have ever used.
JettPilot