Excerpts from Toby's message of 2010-10-02 23:16:06 +0200:
  Short version:
 Have an Audiofire8, and it works great through FFADO but only with
 Jack.  Jack is cool, but how do I get my normal system
 sounds (like from Firefox, etc...) out of it?  Alsa seems
 not to be present at all.  Did I choose badly?  Can I ever get
 normal ALSA programs to see my Audiofire 8?
 Thanks, 
Afaik, ffado only works with jack and not at all with alsa.
There's one possible way I'm aware of though:
- Run Pulseaudio on top of jack
  everything alsa or any other soundserver can then run through PA and
  you should get what you're looking for.
I've only tried PA on top of jack briefly, but it seemed to work, YMMV,
good luck.