I recently got my PC hooked up to my HDTV in a different room. The rooms are adjacent, but have a big (110 year old) plaster wall in between them. For the HDMI I drilled a little hole in the floor and ran it through my basement to get to the TV about 20 feet away. For a controller I've got a wireless transmitter for XBOX 360 controller that does work pretty well through the wall, although it cuts out once in a while if I'm sitting too far away.
Now I'd like to get a wireless keyboard and mouse (or keyboard with touchpad) so I can have full control from the living room. Should most wireless keybaords have that kind of range? It seems like most decent ones will reach 20-30 feet just fine, but the question is whether or not they'll send the signal through a pretty thick wall. Anyone have any suggestions. I've been looking at these two, and I hope to stay under $50 if possible.