[Zope] Web Based HTML Editor

I am looking for a web based html editor for our content providers that I can slightly modify so that it will post to zope (structured text does not cut it). Something like http://sourceforge.net/projects/richtext/ that works with other browsers and browser versions (not just IE 5.5). Maybe Java based? I know someone must have something like this running. My dream: A button that appears according to authenticated role... (WWW_HTML_Edit). It would be a killer feature. Carl