In anticipation of possibly getting a 360, I've thought about running some network lines in the house. I've had times where I've wanted/needed to do this with coax, telephone, and network wiring before, but wasn't confident enough to do it, as I've always wondered a little bit on working behind the wall.
My main question are these:
How am I supposed to run wiring behind a wall that already exists without tearing it up?
Is there a piece of plywood or 2x4 between floors behind the wall? i.e. if I open a hole on the second floor, and try to drop a cable down to the first floor, or furthur into the basement, will it actually make it there, or will it just rest on whatever floor I'm on because something physically separates the floors?
In the past, I've just used longer cables to bypass destroying walls and such, and/or tucked wires into the space between the carpet and floor molding (when on the same floor). The possible future 360 is just another reason for me to learn this thing. And I'd rather not spend the extra money for the wireless adapter, either.