I bought an old Roland MMP-2. It has coax optical outputs (both S/PDIF and AES/EBU). I bought the MMP-2 primarily as a way to test an external preamp against those that are integral with our Fostex MR16HD but if I had a way to go direct to computer that would be a nice option too. The Fostex has only optical S/PDIF out. There seems to be no clear winner in the optical/coax interface so having everything on such a small unit as the E-MU 0404 seems to really add to it's value as a tool for a variety of occasions. Along those lines the MIDI In and Out are also nice.