A new version of smcFanControl has been released. The 2.0 version includes:
- Minimal UI - doesn't appear in the dock, but shows up as a menu item (displaying temperature and fan rpm)
- Automatic adjustment for being powered or using battery
- Multiple setting that can be selected on the fly.
I have updated the version running on the Mac mini, and have now installed it on my Mac Book Pro. The concerns that I had previously, where the fan was always too loud, are now not a problem, as I can have different settings for different situations.