WOW! I rarely have an answer to questions, but it's my turn now!
I just upgraded to a new PC (Win2k) from a Win95/WinNT sytem.
I wanted to keep my external SCSI devices, the NEC changer and a Microtek E6 scanner. I just finished connecting them and Win2k recognized both devices, even the CD titles I had in the drives.
I decided not to use my 2940, but instead purchased an Adaptec USB 2.0 controller (AUA-5100) and a USB-to-SCSI adapter (USB2-XCHANGE). I ordered both online form Adaptec's site on Monday, 2-day FedX.
I saw several articles talking about issues with termination, but it wasn't a problem. The NEC was first in my chain and I had termination at the scanner. Also, the advertisements quote up to 7 devices ;( , but there's a asterisk that references a limit of 4 devices in the chain. Either way, I only had two devices, so it wasn't a concern.
Hope this helps you make use of your changer.
James