handy notation editing gadgetry

The tedious entry of notes seems to be the core difficulty that is inherent to any notation-oriented approach. To help alleiviate that difficulty I have found some alternative input devices that help make the process of operating Notion more fluid. For anyone considering use of special hardware gadgetry to operate Notion quicker, here is best of what I have found.
Firstly the mouse itself is problematic when you are trying to work at a music keyboard etc. I found an unusual alternative mouse device made by a company named "Contour Design", it is called "RollerMouse Free" and it fits very effectively into a music-keyboard setup due to its shape and mode of function. I think the way the RollerMouse is operated just happens to be ideal for musicians' hands. I find myself intuitively using either or both hands on the RollerMouse while playing notes on the musical midi keys, and the motion is so fluid I don't feel any interruption of the musical process. The same company also makes "Shuttle Pro" which I find somewhat useful, but the RollerMouse is my favorite gadget.
http://www.youtube.com/watch_popup?v=t2DV7Fh18vs#t=156
I also have experienced a great improvement in notation entry speed by using a special small programmable computer keypad which allows user to configure each button with any shortcuts and macros. I purchased a "Logitech G13" and configured it with all the Notion shortcuts for note durations, accents, dynamic markings, articulations, etc. It was simple to create a layout of all the Notion shortcut keys that would be intuitive to operate by feel so I do not have to look down at it. With a little practice my left hand easily got accustomed to my own layout of all the reconfigured shortcut keys so now I can really flow along through the process of musical notation entry in a way that feels more like making music.
Anybody else out there found any special gadgetry that enhances your Notion experience?
Firstly the mouse itself is problematic when you are trying to work at a music keyboard etc. I found an unusual alternative mouse device made by a company named "Contour Design", it is called "RollerMouse Free" and it fits very effectively into a music-keyboard setup due to its shape and mode of function. I think the way the RollerMouse is operated just happens to be ideal for musicians' hands. I find myself intuitively using either or both hands on the RollerMouse while playing notes on the musical midi keys, and the motion is so fluid I don't feel any interruption of the musical process. The same company also makes "Shuttle Pro" which I find somewhat useful, but the RollerMouse is my favorite gadget.
http://www.youtube.com/watch_popup?v=t2DV7Fh18vs#t=156
I also have experienced a great improvement in notation entry speed by using a special small programmable computer keypad which allows user to configure each button with any shortcuts and macros. I purchased a "Logitech G13" and configured it with all the Notion shortcuts for note durations, accents, dynamic markings, articulations, etc. It was simple to create a layout of all the Notion shortcut keys that would be intuitive to operate by feel so I do not have to look down at it. With a little practice my left hand easily got accustomed to my own layout of all the reconfigured shortcut keys so now I can really flow along through the process of musical notation entry in a way that feels more like making music.
Anybody else out there found any special gadgetry that enhances your Notion experience?