Single handed keyboard options for coding?

dubbreak writes: I was recently injured in a car accident which will limit the use of hand for 6 weeks or so. I'll be taking a little time off but deadlines march on and I'll need to be (semi) productive after my initial recuperation. What is you experience with single handed keyboards or other input option that require one hand at most?

The current project is mainly C#, so I've need to be able to type brackets, semicolons and parentheses quick and painlessly.