I just got the cordless Freedom (nothing special) for $50 or so... newegg. I killed my previous keyboard by knocking the mouse off the desk. For an AV system, I'd go with the cheaper Logitech cordless because it's probably going to see some problems later down the line. Sounds like you're going out of range though..... it doesn't travel through walls or anything thick, you'd have to carry the reciever into the other room, which may defeat the purpose.