Share 'External SCSI Hard Drives for Mac SE'

I'm wanting to expand the hard drive space for my Mac SE by adding an external scsi hard drive to it. My clip art and hyper card collection is getting to be around 30 megs - don't want to max out the internal 40 meg hard drive. "Back in the day" did they sell external hard drive enclosures for these where you added your own hard drives, or did people usually go with zip drives or other external…