RE: anyone used a Mustek DV5000?
I have used a Mustek DV4000 - purposely bought and modified a MPX Easystar. Cut a hole just in front of the canopy and just pushed the camera in. Powered the ES with a 3 cell Lipol 1320MHa pack - and generally got bored after 25 + mins of flying. Very cost effective little setup.
But - the Mustek camera has a bit of a problem with its "white balance" in that it is very slow to respond - basically turning into sun can washout the image for several seconds.
My camera broke - looked like the ccd was playing up. In the end I sent it back to the manufacturers - waited several months - and then waited several more. Eventually a package arrived from them unannounced containing a new video camera. Only trouble was that this new camera (totally unbranded) is four times the size (though much better spec'ed - including four white balance modes and full autofocus) - there is no way it would fit in the easystar!