Just reading the responses here - am I the only person who has zero problem using a trackpad and keyboard with my hands for >=8 hours a day? Maybe it's that I'm not a designer and so the precision of my motions isn't such that I'd experience problems like this. I think the only problem I've ever had was back when I tried using a Microsoft Natural keyboard, and my hands were sore after an hour. Also, good for her, fin…
I did have some keyboards that cause more "tired hands" than others in the past. I also prefer trackpads to mice. Lately I'm using Apple keyboard/trackpads.