Multi room audio

So I am wanting to create a HARDWIRED multizone audio system for my home with 6-8 independent zone. I would like to have my access to my complete cd collection. My home is prewired and has wall controller panels cut in and ready for my choosing. I have use sonos in the past and like the ability of using rhapsody for non-critical listening. What multizone system do you recommend as well as media server such as request, zon, etc. Accessing via my iphone is also quite important. Again, I know sonos will work but my new home is already prepped for a built in system.