wow! that's scary about that one burning up like that. Those are interesting switches that you used instead, might look into them.
The new switches are nice, It's a little weird not having toggles in those locations. They should be able to solve the problem of people leaving the bathroom fan on, just set a time to turn it off after 60 minutes.
That sound deadening material you laid down, where did you get that? Hope when you are done with those rooms you show us (if possible) how much sound it deadens.
I bought it from Amazon, it was the only place I could find free shipping. At 125lbs per roll, free shipping is important! I learned about it when doing high end audio systems in cars. For a high end car you'll do a layer of a constrained layer dampener, like Dynamat, then a layer of closed cell foam to isolate the next layer from the chassis, then a layer of MLV.
I'll be adding ceiling speakers to the two bathrooms, kitchen, and living room. I haven't decided on bedrooms yet. The tough part isn't the speakers and power, that's easy. The tough part is catering to Android users. If I ignored Android I'd just get a bunch of older Airport Expresses and use them purely as AirPlay targets, just send the 3.4mm audio out directly to the amp. Simple, cheap, reliable and they could live in the IT Room!Have you thought about wiring the rooms with speakers so that if you had a roommate in his room, he can listen to his music in his room through the speakers?
To include Android users I'll have to use something like a board from Arylic and it'll have to go in each room that is a "Zone." Having the source far away from the amp makes getting the signal back to the amp in IT Room difficult. I'll probably have to put a DI box in the room, driving up the cost and complexity.