Night video
Jon:
Someone here may very well be able to answer your question, but you might also
try the consumer electronics video forum (GO CEVIDEO). Also, some cities have
stores which specialize in this sort of thing. I know where I live (Birmingham,
Ala.), there is a story called "Spy Supply," which sells all sorts of gadgets
to do things similar to what you're talking about.
Good luck.
David