I just opened this thread to suggest the Digidesign AudioMedia III, but I see it's already been mentioned. So consider this a +1. You should be able to get it working under System 7.x -> MacOS 9.x with the right combination of Digi INITs. It's almost certainly a no-go for OS X.

I have a vague recollection that there was a PCI version of the AMII as well (as opposed to the Nubus version).