Neck muscles, shoulder, upper back. The problem derives from starting in one direction and needing my arms to be braced enough to be quick to the keys. I've tried all sorts of different postures and what not, seen my chiropractor a few times, etc., but nothing helps the problem other than being away from the computer for a while.
I have the same problem. My wrist/forearm problems are symptoms of a problem that starts up at the shoulder and back.
One thing that has helped me tremendously is a foam roller. I have one that allows me to lie on it with my spine parallel to the roller length. I use it in the morning before work and in the evening after work (for about 10 min.) and I find it really helps release built-up stress and fatigue in my back and shoulders.
http://www.healthyback.com/products/glidepoint/foam-rollers/...
Sorry to hear that... Are you in a position where money isn't playing a huge factor? Something that I have always had in the back of my head to do after I "retire" is to teach. Once you finish your degree (didn't see if you said post grad?) you'll be eligible to teach in some states (I know you can in IA if you have a Bachelor's in anything).