[Icecast] Web Based scheduler like LiveSupport for icecast

[Cristian Alvarado]

I've been scouring the web for a web based scheduler for use with  
icecast.  Here is what I'm looking for:

I want to be able to say "at X time, Y file/playlist will play"
I want to be able to control icecast from the web
I want to be able to lock control of this site with some form of  
authentication
Preferably PHP, but ruby/rails would be good too.

Any suggestions?

--
Cristian Alvarado
ocdude at gmail.com