Due to increasing problems with my hands and wrists, when I need to type, I have been using an ergonomic keyboard by Microsoft, called the Natural Ergonomic Keyboard 4000. This keyboard features a split keyboard design, with the two halves curved slightly. It also has a padded wrist rest. Using this keyboard does put less stress on my wrists.
Microsoft Natural Ergonomic Keyboard 4000 Review Do you have difficulty typing sometimes due to wrist strain? What solutions have you found that work for you?