People are asking about alternative keyboard layout types. I've been using these Kinesis ergonomic keyboards since 1995. I can't even use standard keyboards, as a typist that is.
Standard keyboards send me into "hunt & peck" mode, because some of the most used keys are in completely different locations. The finger-reaches are primarily straight-lined instead of diagonal (like some other models that are posted here earlier), the hand positions are spread apart, thus avoiding the turned wrists and the keys are set into bowl-like depressions more closely fitting the differing lengths of our fingers.
When I first saw them in Computer Shopper Magazine, I called Kinesis and they mailed me some info - including a to-scale size diagram of the key layout. When I put it on my desk, and set my hands on it - it was more comfortable. When I put my hands back over the standard keyboard, the tension in my wrists was promptly noticeable - something I had taken for granted before I had any alternate to compare with.
It took about two weeks of typing practice, about 20 minutes, twice per day to really get adjusted to the finger-reaches. That - and all the major utility keys placed under the thumbs are why it's so completely different when I have to use someone else's standard keyboard.
They
are expensive ... about $350 depending on models (they were around $250 in '95) - and they tend to be a little cheaper from aftermarket suppliers than from Kinesis themselves. I bought one of the black "Advantage" models, used, on eBay for $150 - it had some keycaps missing - easily replaceable at Kinesis.
There are programmable models which are the most expensive. They are (all) switch-able between QUERTY and DVORAK key layouts. Kinesis has program-able foot switches too, to aid with alternative moves. I tried their early one switch model to use for the Shift keys, but I never got adjusted to using my foot accordingly.
I have two (black) "Advantage" models in use (like the picture included here) and one semi-retired, white, Ergo model (because it's broken and I don't have 3 computers, so there's no rush to repair it -> that was my first Kinesis keyboard). Long after the warranty expired Kinesis refurbished it for $50 - it was like new. New key switches are really like getting a new keyboard. The black models don't need as much cleaning, of course.
The only thing I dislike is that the SHIFT keys are still in the standard positions - and my pinky fingers are not too strong at my age and in arthritic condition - and, as I mentioned earlier, my foot switch use attempt wasn't good (although that could be partly due to my keyboard shelf position, which is
right above my lap - on my home-built computer desk). A new setup is in my next summer's plan, so I may reconsider using foot switches after that's done.
As to the Shift keys remaining in standard positions, I guess they didn't want to crowd yet another pair of keys into the central utility key clusters where the the CTRL, ALT, Delete, Backspace, Home, End, Page Up, Page Down, Enter and Space keys are located. Those are all thumb-moves on these keyboards. I must say, after almost 20 years using these, I'm stuck on them.
I have had them ALL apart to clean the insides, even replace key switches, repair some of the inner parts, solder ribbon cables back into place, patch up broken plastic mounting pegs inside. Some of this more major repair was after a bookshelf collapsed and partly crushed the key switch wells on my first "Ergo" white model.
Have fun looking - it's kind of a different world for typing.