How did I live without the "Multiple Speakers" option in iTunes?!

[john-o]

And here's another question for you all:

I have a wireless network, with a APExpress set up next to my stereo. Problem is, I don't have AP in my Mac Pro, so the only way I've found to send iTunes music to the stereo is to enable library sharing, then have the laptop load the Mac Pro's music, and send that to the stereo. Is there no way to accomplish this without having an AirPort card in my main machine?

I'm guessing not, but hoping somebody's figured out a solution!