I'll see your buttons and raise you...
...a WYSIWYG HTML editor. My to-do list is pretty backed up, but it's long been on the list. IE (but not Mozilla, unfortunately) provides a way to set the elements on a Web page into editable mode; the page works pretty much like a word processor. If you haven't seen it before, it's almost spooky--"but, you can't edit Web pages!". Out of the box it works strictly through keyboard shortcuts--press control-I to set italics, for example--but you can also add buttons just like a word processor.
Stay tuned...