How do you want to control each zone?
How many speakers in your home theater?
Basically few ways to do it:
1. 2 seperate systems: one for your theater and one the rest of the house off speaker selector w/volume control.
2. 2 seperate systems: One for theater, one for rest of house through a speaker selector running to volume controls at your music location.
3. Multi zone 7 ch a/v receiver with 5 channels to run theater and the other 2 channels run into a speaker selector w/ or w/o volume
4. Multizone a/v receiver with second zone out from receiver to a multichannel(like 6 zone) amp that is attenuated from volume controls inside each zone.
5. Receiver to run theater and a seperate multisource/zone receiver to run the remainder of the house like the zones in #4...
They have outdoor and inwall subs that can cover your lows...
Most A/v inceiling speakers are 8ohm ea, while car speakers are 3and 4 ohm...
I elected to run 2 seperate receivers. My theater is 6.1, so I only needed a nice 6.1 receiver with only half the bells and wistles. The rest of my house is currently wired to my old a/v receiver with a volume control/speaker selector that runs 2 pair of outdoor speakers. I haven't had time to install the ceiling speakers in the remainder for the whole house system. The master bedroom speakers are set up to play from the receiver and will automatically switch to play tv sound once my tv is turned on... I'll run a multizone receiver once I get the $$ to do so