I've never had a problem with two Adaptec 2940AU cards, an Adaptec 1542, or 2 Adaptec 1520s. The drivers leave something to be desired once in a while. My 486 VLB system runs a Buslogic BT445S SCSI card (Fast SCSI II) and an ATI Graphics Ultra Pro. The Buslogic has been a wonderful card; it's been in service 7 years now under OS/2, DOS, Winblows, and now Linux. Too bad they were bought out by Mylex, and eventually disappeared into oblivion. Any other Buslogic owners out there? The ATI card was marvellous at the time - 1280x1024 in 256 colors with a 70+ Hz refresh rate. It's a little flakey now - the system requires me to hit the reset switch before it will boot. Replacement ATI VLB cards have been DOA ... apparently they don't age too well.