I personally use a sony alpha33. The good thing about it is, is that unlike most DSLR cameras, it shows a live display. This is the only camera I know of that is great, and does this.
Another good camera is a nikon D40. Like most DSLR's, is doesn't have live display,
Meaning that you have to...
My first was technically a pygmy. I watched her for a couple months because my friend couldn't take care of her.
I fell absolutely inlove with chameleons during that time.