Keyboards For One Handed Typing & Chording?

FullFrontalNerdity asks: "I recently hurt my wrist in a car accident, the net result being that I am forced to type with one hand due to the pain that typing normally causes. Needless to say, its slow, inaccurate and limits by ability to do my job (I'm a software developer). Does anyone have experience (good or bad) with one hand chording keyboards or other input methods that work well in a software development environment?" We have to realize that computer users may suffer from a disability or an injury. When injuries occur to the hands, it turns in to a computer user's nightmare. Are there keyboards out there that attempt to address this possibility so people with such problems aren't forced to use a device that really requires two hands?