ESDI controller recommendations

[gary at saturn.ucsc.edu]

We have a 386 running SCO XENIX 2.3.2 with two CDC Wren III
(ESDI) disks controlled currently by a WD1007a-WA2.  The controller
is in need of being replaced.  Does anyone have a similar setup
and/or have recommendations for a reliable disk controller?  The
following controllers have been recommended: WD1007-WA2, DTC 60280,
and the Adaptec.  Any suggestions as to the most reliable?  In the
near future we plan on replacing one of the disks with an ~300Mb drive.

Any and all suggestions/recommendations are appreciated.  Thanks.