Keyboards are great, but if you want to use both your keyboard and your mouse effectively, at the same time, you're SOL. You can get expensive, cool, things like the FrogPad, or you can come up with a simpler, cheaper solution. After all, you have all the keys you need on the keyboard that you got with your computer, they are just placed badly for one-handed use! Well, the solution was invented a while ago, by Dvorak. He designed a keyboard layout for folks without a right arm, which is cool, because that arm can then be using a mouse. The actual keyboard layout is documented by the good folks at Wikipedia.

I have made a keyboard layout for MacOSX that transforms your current keyboard into a lefty-dvorak keyboard. Toss it in /Library/Keyboard Layouts/, Log out, log in again, and use a sharpie to write the new letters on your keyboard. You can always take it off with rubbing alcohol later.

Without further ado: Dvorak-Lefty.tgz

Note: Thanks to Tom for pointing out some issues with caps-lock, the new file deals (I hope) with this issue.