How Do You Hide The Cords From Your Wall-Mounted TV?

Vogel's "Hide a Wire", very elgant: http://www.vogels.com/web/Consumer/Products/Products/XCW250-HIDE-A-WIRE-SILVERC.htm
Or the column system:
http://www.vogels.com/web/Consumer/Products/Products/EFA6835-COLUMN-SYSTEM-63CMC.htm

I very recently finished my living room project. The 47" LCD is mounted on the wall. Behind the TV installed on the wall is a hospital grade surge protector outlet and another wall plate designed to feed cables down to the bottom of the wall where they come out of another plate that seals around the cables so that everything looks very nice and neat. The speaker wire for the 7.1 surround sound was run behind the walls to wall plates where the speakers mount to the walls.
I learned that for a sub woofer you can run coax cable for the wall run, and then install coax to RCA plug converters behind the wall, and then hook it up normally to the receiver. It's a much cheaper way to run a subwoofer cable to the opposite side of the room.

I used an iConceal to hide the wires. I'm constantly opening it up to cram more cables in there when i need to. It's a stylish solution which supports my gadget lifestyle ;)

http://www.iconceal.tv/