What You See Is What You Get - This is basically for the text sections for your pages. It allows you to format the text, insert images, change text and background colors, add lists, and even build tables. The default editer, HTMLEditer, has full editing capabilities are included such as copy, cut, paste, undo and redo.
And if you know HTML, it even lets you edit the raw code of the text to tweek things so they are just what you are looking for.