Forum Moderators: phranque
Kensington Pro tracball. It's expensive, but the 1.5" diameter ball is easy to manage. You can also program the cursor acceleration/deceleration and set the function of the buttons.
And I agree with the previous comment that the settings should be slowed down. The Kengsington may not ship with the software, however. You have to download it from their web site.
Good Luck!
example being if you have a backend for creating your sites and fill in/edit forms......pressing tab a few times and typing away is sometimes faster than all that strain and hassle involved when reaching over for a mouse :)