Hey Cubivore,
I've been editing audiobooks for the past 12+ years
I use soundBlade, and find it to be a very well thought out, intuitive program for editing. It's a bit of a learning curve, especially if you have never done any source/destination editing, but it's pretty rare that I move my mouse anywhere other than the waveform I'm working on - all my moves are keystrokes. I also have an expert mouse, and my arms are fine.
-Dan