Two interesting products from Contour Design
The vendor says these tools can help people who do a lot of work in front of a computer screen such as a radiologist searching radiographic images for problems. The top item the shuttle pro has a bunch of buttons (13) and a toggle which can be programmed to do common functions to speed up everyday tasks.
The RollerMouse set in front of the keyboard (as shown) and allows the user to do mouse type functions by simply rolling the bar. This means less stress and reduced muscle pain.