Thanks for the replies. Can't go 42" because of mounting 2 W3s. There are studs in the way in the wall. The 37" will put the speakers about 1 to 2 inches away from the sides of the TV. Can't mount on the other side of the studs because then there would be a door and a hallway in the way. I thought about the 720p for quite a while, but just wanted the 1080p. If I got the 720p, I would constantly be wanting to upgrade it again.