I listen to podcasts and audiobooks. I got so bothered by the problems with the touch pad, that I bought a Clip Zip. No Touch pad, no touch pad problems.
Then not caring if I bricked Fuze+, I put rockbox on it. And amazingly, the biggest problem -- that of getting the touch screen to work at all with a FF or Rewind in a chapter or episode was solved.
This suggests that some of the problem with the touch screen isn't hardware but Sansa''s implementation of it.