Now that headers become even more important:
H3 and H4 are almost indistinguisable (at least on Explorer 6 default settings).
This is quite confusing. A reason why many writers prefer '''bold''' text for headers lower than H3.
Also the font size for the headers is quite large. Small paragraphs with huge headers is quite ugly.
This has been discussed before: Can we have a smaller H4 in the stylesheets?
Erik Zachte