HTML converter (if we must)

As far as I can tell, most HTML converters are really imperfect and would require some knowledgeable clean up afterward, so I'd rather avoid them by using Mobipocket and Calibre if we can (see Sam's post and my comment) or Nyssa's idea for Adobe InDesign. But if we must use one, text fixer is an example of one that works more cleanly than most and will keep structure/ formatting. It won't keep images though. Word to Clean HTML is another option. I don't think any free online converters will keep images.