In ceiling setup with squeezeamp

This community has been very helpful for quite some time (I was using squeezeboxen long before logitech appeared) and for that I've been very greatful.

We are having some work done in our kitchen, and I'm using this opportunity to put in ceiling mounted speakers. It is behind a wall from the main setup so sound gets lost from the main system, particularly with the sounds of food preparation. The goal is not high fidelity, but the chance to listen to music, news, podcasts, etc. while using the kitchen. Quick on and off would facilitate use.

Current plans that I would like to bounce off the assembled wisdom here would be to use a squeezeamp to drive two Polk RCi 80's ceiling speakers. Currently this is powered by an older laptop 16v power supply

So the questions I have surround how this should be installed?
1) What is the best way to power the squeezeamp?
2) should the squeezeamp and/or power supply be enclosed somehow?
3) I am planing on using an iphone with a material skin to control this one (of probably 6 squeeze devices). Are there any alternatives (in wall panel, etc.) that I should be considering

Alternately, are there good sites that make this simple? Most of what I find through google assume a large home theater setup. My goal is much more minimalist.

Thanks you all in advance