RSI is nasty, not as bad as gout, but both can totaly ruin your productivity. Like many before me I finally got myself a trackball. It's the new MS Intelli-ball. The first thing you'll notice is that it's huge:

The good thing about that is that it really does fit my hand and has no hard edges which irritate. Most mice are actually far to small and/or have irritating edges. Another funny thing is that the usal buttons and wheel are operated by thumb. Your fingers rotate the ball. I was used to the thing in no time. By now I've also used it for form and report design and I am sure : just great. One thing : like all other MS mice the back and forward buttons don't work in FeedDemon. But they do in IE and VS.

Really recomended.

Peter