The MX1000 is also part of the Cordless 5000 bundle. However, it is a bluetooth wireless mouse in this package instead of the standard RF wireless. This package is expensive if all you want is the mouse ($150 US). I agree with the statement that this is the best mouse ever. I have been using the MX1000 since it came out and have loved it. I use the 3 thumb buttons for Tab, Ctrl and Alt. I use the wheel tilt left and right for skills that I use frequently or for "reactionary" skills. With the combination of ctrl+, alt+, and shift+:tilt left, middle button, and tilt right, you have access to 9 buttons without ever having to move your hand off the mouse and you also have access to all of the ctrl+ and alt+ skills where you normally rest your hand (for me it is 1 through 5). On top of all of that, you also get the two rocker buttons (one in front of the wheel and one behind the wheel). All in all, I hope that someone comes up with a new mouse that tops this before my stockpile of MX1000's die (I currently have 4: 2 RF and 2 BT which are boxed and brand new).