LCD Wall Mounts
Here’s a few vendors and solutions for mounting a TV to a wall (Omnimount SB1 + 4N1M):

The 4N1M sell for around $150 through Radio Shack. The recessed box (SB1) sells for around $90 at Amazon.
There are some other high-end solutions from Inca (allows you to lift the TV into place) and a whole slew of options here (Ergo on Demand). Architect Michael Ross Kersting implimented a lift system quite nicely here.