My mates just sold his house in Wales and moved back to the East Mids, but he's still got some projects here so he's dossing at mine for a few weeks, and he's brought all his toys with him.
There's an Apple TV and a Sonos Connect here.
The Apple TV isn't connected up yet, i can do it, but they're his toys so i'll let him do that. I know you can access your itunes library from it, but not sure how it integrates into a multiroom set up.
The sonos is fab so far. It uses Spotify which i have moved too (Premium £10 a month). I down loaded the Sonos remote App for my iphone and straight away it's up and running, all your music and playlists are there straight away. My Spotify account on my Mac see's the music i have on my Itunes, but i'm not sure if Spotify on Sonos sees it as i'm using my mates account (he's away so can't log into my own account).
There is no bridge here but if you want any info i can ask my mate, he's a real multiroom geek.
Really easy to use and sounds great!