We are actually using a Sony Anycast for production of the show.
For now outputting to a DVCpro50 shoebox, for recording and for output to our Adobe flash media encoder (firewire). Our show is then run through
http://watershed.ustream.tv
Its live right now (if interested)...
http://scad.tv
I was looking at the ioHD so that we have the ability to do HD/SD in a portable appliance.