Ian,
I'm facing a dilema with the placement of my surrounds as well. My listening/watching are is 12X15 and the couch is directly against one of the 12ft walls. the room is in the basement and has 7 ft ceilings. I have a side wall about 2 feet away on one side of the couch and nothing on the other side (it opens to the rest of the room) Where would I place the surrounds?