Multi room audio setup with Apple bits

[Wadeski]

OK - so I've just moved into a new larger apartment with my wife and (soon to be) baby. I'm not sure if this is an audio question or a computer forum question but i figured there are many on PH who have techno joy

Somewhere on the list of changes, comes getting the multi-room music setup properly. The apartment has two rooms (master bedroom and room for the nipper) and a lounge.

What I woulld like to have is the ability to stream my iTunes library into different rooms. If possible, even different music into different rooms at the same time (e.g. baby sleep sounds into one room, music into the bedroom or lounge).

Kit i have is:

Denon amp and speakers in the lounge.
2 x Airport Express base stations with the speaker jack for Airplay
1 x Apple TV (black)
2 x MacBooks
Lots of iPads / iPhones.

I was planning on having:

1: the Apple TV set up in the lounge with the speakers using one iPad as a Remote
2: 1 x Airport Express in the babies room hooked up to small hifi, controlled by the Remote
3: An ipad base station with wifi in the master bedroom to act as a clock radio / listen to the radio quietly in the bedroom

It seems as if Apple always wants your macbook to be the "centre" of the ecosystem vs a media hub with storage for some reason. Is this correct? And is there a smart way to control switch between mine and my wives iTunes libraries on the fly?

[Wadeski]

I like the look of the Sonos, but I know if its not Apple the chance my wife will use it is zero. She's as thoroughly brainwashed that "Apple = Easy, everything else = Hard and not worth learning" as anyone I've ever met!