My trusty MX-700 has worked flawless for years. Now I'm finally caving and getting something for the bedroom. The only complaint I have about the MX-700 is 1) the center button is sometimes hard to isolate and you end up pressing one of the directions buttons, and 2) I have to use my old notebook because I've been to cheap to get a USB based serial connector.

2 I can easily solve. If the MX-700 is all I need and I'm not looking for any bells an whistles more than my MX-700, what was the model that is the closest where they improved the center button so it isn't so easy to accidentally push the directional button instead of the center? Is it MX-800 and just not use the RF capability?