Does this Sonos speaker setup work?

I'm undergoing a remodel and am going to have walls and ceilings opened up.So, I was going to putter a better whole house system. Initially, I was going to put in just a new dual zone receiver, a monster speaker selector, and the impedence switches in a few rooms and try to connect the house in this way.

All of this was going to run to 2 pairs of Polk RC8's ceiling speakers and 1 pair of external speakers.

I had read about the Sonos system and dismissed it initially, but am now intrigued by the Wi-Fi, iPad, iPhone control of it. I have some questions as a result though.

I'm considering the Sonos ZP120 to provide the amp as well and would like to keep the Polk ceiling setup. My questions are:

* Would I need more than ZP120 to run 3 pairs of the 8ohm speakers?
* If I did have more than one ZP120 for some reason, is the idea that they "speak" to eachother and that is why I can control different speakers in different rooms from one interface?
* Doesn't it seem redundent to have more than one ZP120 with a multi-speaker setup when many people will just be after the additional amp and not really the CPU/control? I don't understand this part.
* If I want to pump the audio from a DVD playing through my TV system through the house (maybe a concert DVD), how would that work?

You know what Tim,

I wold be on the line with Sonos Customer service pronto. Your questions are specific I can think of no better set of answers than from the manufacturer. If you are going to have peace of mine there's where you will find it.

Powering several speakers through out the house from a receiver would not work out. It is only capable of powering one set of speakers and using a switch box may not support more than 2 to 3 speakers. The ideal way is to have a power amplifier for each area in the house you want to have sound on. It is very complicated and costly, than just adding a switch box to the receiver. You can connect a power amplifier on the pre out of receiver for each room you want to have sound on is the best way. This way you are not using the power amplifier on the receiver to power the other area in the house. Hope this will help you out.

The Sonos system is proprietary and will not work with other speaker systems only other sonos systems also it is wireless and you do not need to place the speakers or wires in the wall… I would take a look at systems by HTD (Home Theater Direct) for wired systems and Grace Audio for wireless… Wireless is still very expensive though and doesn't mix well with wired and wireless in the same system… Anther item you might take a look at for wireless is the Soundcast SC 100 this system will allow you to use regular 8 ohm speakers like the polk you have but wireless, I would think very carefully before getting into wireless though because its expensive and has not been perfected especially if your looking for the same quality you can get out of a wired system… Wireless is prone to interference from microwave ovens; cell phones etc. And the quality of sound is still not as good as wired except for the most expensive systems… And then its only as good as an average sounding wired system…