And Captain, I'm very interested in this idea, but want to wait for the next version of Canola to be released. It sounds as though there might be a way to add this sort of capability as a plug-in in Canola, using their interface etc. I'm planning to hold off for a few weeks until that situation becomes more clear.
By the way, a HUGE thanks for the Linux audio server article - that's just the sort of thing I needed to read.