project page - http://drupal.org/project/whizzywig
what does it do? - gives users editor that is faster, smaller, and easier to use.
- Choose which buttons / lists to show on the toolbar and in what order
- Create custom buttons
- Filter editor visibility based on textarea IDs, paths and content-type
- Built in File/Image Manager!
- Customize the look of the editor by defining your own style sheet, editor width and editor height
- Translate the editor interface by setting a translation file
- Ability to use the Whizzywig xHTML addon
check out this website for additional information and demonstrations on the whizzywig module