[jgrahamc]

I spent a lot of time investigating small cameras and these ones were the ones that looked best. You can read more than you want to know here: http://www.chucklohr.com/808/

The ones I am using are what he called #16: http://www.chucklohr.com/808/C16/index.html

[joshu]

I have a source for #3s if you want it.