I might be opoen to the idea, but I can say that the next Yes, Genesis, Pink Floyd, King Crimson, Spock's Beard or Transatlantic day won't be until 2008! Since all of the last 200 days have been one or more of the above thanks to the requests.
Seriously, though, this is something we'll consider as an occasional feature, but I can't guarantee we'll do it everyday - it takes a lot of time to DJ, and this job doesn't pay enough for me to quit my "real" job.
Avian and I have talked about this in the past, so send in some ideas (and try to be creative - Italian prog day, bands with violins, etc) and maybe we'll get this going.