A scanner that supports Linux (sane) did me when we had a batch to do.

A simple command line, eg.

scanimage --source Transparency Unit --x-resolution=2400 --y-resolution=2400 --film-type Positive Film 1

ImageMagick to get the individual pictures from the scan and make thumbnails.

Wrap them up in a little bit of php to and make a couple of "web pages", one to scan and post and the other to browse and most of the job done.

The scan page

The browse page

I think the Windows Epson software would have given me the separate photos but would have been less efficient and had to be done on the laptop (the only Win install I have) where as this php and linux way can be operated from any PC in the house.