anyone have experience with AirPlay for music?
I'm putting in some ceiling speakers in a few rooms, and I'd like to be able to run them off a common receiver/amp. Ideally, the same amp used for the TV.

I have 3 sets of ceiling speakers: bathroom, den, family room. I'd like to be able to run sound from an iphone to any room. If possible, I'd like to get an amp/receiver (with AirPlay) for the TV, and then use it for the speakers. Can AirPlay be configured to turn the amp on/off, select outputs? (From the iPhone: music to bathroom)

Or is there a better way to do this? I'm not an audio perfectionist. So, I don't need a super high end, perfect sound system.