I just bought a new house. my living room in the new place is 18' wide and 32' long. There is already a motorized projector screen in the ceiling along one of the 18' walls. We are planning on putting a 60" LED above the fireplace half way down the 32' wall. My question is - what is the best way to setup Audio. We will primarily use the LED for tv in this room - with the occasional movie on the projector (trying to find an Epson 3010 or similar... The basement is unfinished so i was debating using in-wall or in-ceiling speakers - but is there an easy way to switch which speakers are the left/center/right or rear when watching the LED or the Projector? Thanks for the suggestions!