I should have changed the name.
WP Super Edit is a WordPress Plugin designed to make some dramatic changes to the WordPress TinyMCE Visual / WYSIWYG editor.
It has a ton of features including; A drag-drop interface to arrange buttons, additional TinyMCE plugins and buttons, and a framework for doing some advanced button creation.
I completely rewrote this based on my previous experiment with using TinyMCE which was mostly a failure, but I did learn a few things along the way. ( I say failure, but I was able to use my newfound knowledge to help out with the WPG2 and EventCalendar Plugins.)
Sadly, this plugin requires WordPress 2.1 or higher, and you should always be using the most current and secure version of WordPress available!
There is a ton of information on the WP Super Edit Project area!