Tom--I went ahead and ordered a cheap machine to transfer the slides ($50), so will do a few of them and see how good a job it does. I always thought you had to pay someone to do that stuff. Shows you what I know!
Some hook directly to a computer and some save to a SD card or some type of media.
It is a pain in the butt, but addictive once you start
Pay attention to your naming conventions.
The one I have automatically resets when you turn it off.
It will start with IMG-001 and when you turn it off and then start again later it will reset with the slide name as IMG-001 when you turn it back on.