God help me, but I might have to set up a shoutcast/icecast stream from a macintosh this evening. Bookmarks:

• Audion 3, for OS 9 and OS X
• Mac Amp Lite X (defunct)
• Apple QuickTime Broadcaster (does it do shoutcast?)

• Status of rura.org streams
• The stream itself

Update: Ben sent a link to this howto, which seems useful if you're a unix geek stuck in mac-land.