Best way to power multiple channels/rooms with an integrated Amp?


Hi, I am hoping for some advise on the best way to buy and ultimately set up a hi quality yet simple system that I can appreciate in two spaces. I currently use a home theatre amp to power my biwired Sonus Fabers. I want to upgrade my Amp but at the same time add a couple good outdoor speakers that I can listen to together or separate from my indoor system (not expecting to play different music in each space FYI). The easiest would be a high quality Amp (Yamaha A-S3000?) with a basic A/B selector and phono input but that would eliminate my ability to biwire to the amp right? There are also speaker switches but how well do those work? Do they impact sound quality? I'm not expecting big things outside but would like to hear my inside system playing my vinyl in top quality and then be able to walk outside(with the door closed) and still listen in decent quality. I also want my family to be comfortable using it without a users manual. 

Thanks in advance
telemarcer
Yes, the easiest way would be an integrated amp with the basic A/B selector, and no, that does not eliminate the ability to biwire. I definitely would not recommend a separate speaker switch. Even if the integrated amp does not have A/B, there are still other ways to accomplish what you want to do.
You know, this is also why they make distribution amps. 

Something like a Parasound Zamp would work for another zone. 
I will check out the ParaSound. I mentioned the Yamaha integrated. What are your opinions there? I also like the looks of the McIntosh MA5300 but I don't think there is a A/B speaker option. Would a distribution amp still be the way to go? Unfortunately I don't live in an area where I can listen to all these in person. I going based on reputation and features.