I saw the combination at the B&O store and it sounds great. I also bought new Beolab 3, along with the Sonos ZP-90 and the sonos bridge in order to be wireless with my home computer network.
If you purchase the Sonos system, i would recommend that you connect it to a NAS hard drive. This way, you wont have to open your computer in order to access your complete Itunes library. You will also be able play different songs in different rooms of your house.
Also there is no need for the Sonos remote, if you have an Ipad.... Which i feel if the best way to use the system through a free Sonos App available on Itunes.
Lat but not least, if you sign up on Rdio as your online music streaming system, first try it out for a free 7-day trial.... Its great!!! And if you like and want to continu using it, purchase it through the Rdio.com website simply because it's cheaper than through the App itself.
Mike