Why don't you have a look at this toy. You can use it with (some) "old fashioned" camera's. It's resolution isn't that great compared to today's 3 and 4 megapixel stuff but the price is reasonable (around $600 if I'm correct).

btw, santa must be into digital camera's this year, he bought me a canon powershot S40 and it's great. Incredible how they're able to cram all of this stuff in such a small package.