I'll answer two questions.
Why Bose? Best price and best sound for around $500 (used - ebay - came with extra rear center, and front center)...can't do better at this price point...or can I?
The pucks are line voltage - Hampton Bay (~$35 for 5). I cut holes through the under side soffit drywall with a hole saw, they fit up into the holes and have a small cap with glass that is put on. They look great, and dim down very nicely.
Why go out to a movie theater?