My favorite keyboard is a Microsoft Ergonomic 4000. The doc said try it, and along with two weeks of ibuprofen the pain in my wrist left and never came back. I have one at work, where I'm on it nine hours a day. Still using a straight-line keyboard at home, but I'm not on it much.
What's bugging me recently, though, is that we've picked up a contract with a large foreign based business that gave us one of their laptops so we could get into their network. Now I learned to touch type back when Ford was president; I can hit every key, including numbers and punctuation, quite reliably.
On a US layout.
This loaner laptop has a British keyboard layout.
My brain hurts to use it.