Ergonomics

One stick in my life's craw is ergonomics; If I can never unshackle myself from computer use, it will become imperative that the ergonomic situation is improved. I am hunched and my arms are thin and strained; If I'm constantly sitting at a computer I start developing tendonitis. It has happened to me at a few office jobs in the past; I experience numbness in my arms, and then shooting pain along the ulnar nerves that I feel up into my ring and little fingers. And then I can't use a computer for weeks, have to go through physical therapy etc. Mac is rumored to be working on a new interface this year. If I could work a computer like a theremin, like an interpretetive dancer , well, it'd be the bee's knees.