I'd like two gauges, one for clock frequency, and one for % cycles used. I'd happily give up both disk gauges, and the proposed internal one as well, for that, but some people obviously use those, so it's getting a bit crammed.

It might be more helpful to show %cycles * frequency; thus giving a single measurement from 0 (at idle, though I'm not sure how that would actually work out) to 400 (full load at 400 MHz) of actual CPU usage.