Another option you might consider is
http://www.cableorganizer.com They make low profile cable raceway's or sometimes called wiremold. I bought some 1/2" x 1.5" material to run my Component/HDMI cables across the ceiling to my projector. It is white and paintable. They make various sizes designed to go along walls/corners/ceilings. Just another idea. Home Depot and other stores also offers similar products in their electrical aisle. They have adhesive backing and a latching enclosure to hide the wires. Then you could mount the surrounds to the ceiling
Randy
