We have one of the SL-1 EPS and EPS-16+ SCSI interface for sale on our website now. This is the one made by Sound Logic so it provides 5-volt termination power. That means it will work with Zip drives and some other SCSI drives that require term power.
The unit is here, second item down:
http://scsiforsamplers.com/misc.asp
We can hook you up with an internal or external CF-CARD card reader drive to go with it if you'd like. Just ask!
JD Wilson
www.scsiforsamplers.com