SCSI Drives for a DECSystem 3100 -- suggestions?

[Michael Berman]

We have a DECSystem 3100 (essentially equivalent to a
DECStation 3100) and need to add disk space.  I'd appreciate
very much hearing of any experiences, good or bad, you may
have had with adding such drives.  In particular, I assume I
can get more bytes for the buck with a third party solution,
but I want to make sure it's going to work without a hassle.
I'd be interested both in names of drives and suggestions for
vendors to buy them from.  Thanks.