[thebelal]

I personally would recommend colemak [1] rather than Dvorak. While both are improvements over QWERTY colemak only moves 17 keys from their QWERTY positions, while Dvorak moves nearly all of them. In particular Ctrl-Z, Ctrl-C, Ctrl-V require two hands in Dvorak which is very inconvenient. In some applications these shortcuts can be rebound, but in many others they cannot. In colemak their positions (and all of the left-bottom row keys) are the same as QWERTY.

I used Dvorak for ~2 years and then switched to using colemak for the last 3+. OS support for both is widespread.

You can get back up close to your QWERTY speed in about a month or so (maybe less if going from QWERTY straight to colemak).

I switched to the alternatives to reduce RSI rather than speed and found it helped me with both.

[1]: http://colemak.com/