That's a great deal IMHO - if you want video input.
AFAIR, the only other Nubus soundcard of note is the Nubus version of the PAS 16 (Pro Audio Spectrum). It has the advantage of a nifty little software controlled four input mixer, and a MIDI port, but it's a lot harder to find than the Digidesign AudioMedia cards. The AMII Nubus has a DSP onboard, better quality analogue I/O, and digital S/PDIF I/O. If you need MIDI, a serial port interface is a simple addon.
You could also consider a Digidesign Samplecell Nubus, or if price and patience be no object, the Lexicon Nuverb.
I second the thoughts of a PDS '040 - although with the slot layout, don't you lose a Nubus slot?