This is a good guide. While I have not yet had to contend with serious RSI (knock on wood), I have colleagues who have been plagued by it.
The Kinesis keyboards are very popular, and with cause. However do note that some have reported problems due to the lack of motion that is necessary when using one. Making good use of breaks to stretch and move is absolutely crucial.
For my part, my mild problems were in large part alleviated by switching to an upright mouse as well as a tenkeyless keyboard, reducing the distance the arm needs to travel to reach the mouse. The keyboard also happens to be superb (Filco mechanical), but it is not built or marketed as an ergonomic product.
I use a Kinesis keyboard plus a Magic Trackpad stuck to the middle above the modifier keys. It works really well there as long as you don't mind tap-to-click.
I've found that with this setup my wrist pain basically disappears. I haven't run any kind of controlled experiment to see if it's that or just getting up and switching to laptop-on-the-couch-mode every few hours, though.
I had serious issues myself and switched both the general posture and my mouse. Using a 'vertical' mouse from a company called Evoluent in this case. It made a big difference for me.
The Kinesis Advantage (Pro) is next on my list, but too expensive for now, and it isn't easy to get in over here as well.
The Kinesis keyboards are very popular, and with cause. However do note that some have reported problems due to the lack of motion that is necessary when using one. Making good use of breaks to stretch and move is absolutely crucial.
For my part, my mild problems were in large part alleviated by switching to an upright mouse as well as a tenkeyless keyboard, reducing the distance the arm needs to travel to reach the mouse. The keyboard also happens to be superb (Filco mechanical), but it is not built or marketed as an ergonomic product.