wrist pain
thinksketch: I too developed really bad wrist pain - mine was from too much autocad and solidworks.My secrets were to:
1.  Use a good chair and keyboard tray.  always.
2. train my left hand to mouse and switch off
3. use an upright mouse.  http://www.evoluent.com/  It's a little expensive, but it's a good product.  I now have one for each hand so i can switch off everyone once in a while.
4. Also - wean yourself off the little mouse scroll wheel.  Use window zooming for cad and hold down the middle button to scroll on web pages.