phill wrote:I think all the mousing is the cause of my pain.
I would suggest that you try a trackball. I started using a trackball, for most of my computing, before I found and switched to a TouchStream-based solution.
I personally like the bigger trackballs that you use your fingers to move, rather than the smaller ones for the thumb. For example, I own, and still use the following 2 trackballs: the Logitech Cordless Optical Trackman
and the Microsoft Trackball Explorer
The other choice is to pick up a simple trackpad, like something from Cirque or Synaptics - though, from a quick googling of each company, I'm not sure if they still make consumer-oriented products.