Edit buttons

What I miss in drupal are some "edit buttons":
On the top of an text area (if you create a story, comment, forum topic, event or whatever)
there should be some edit buttons like other wblogs have (see nucleus for example)
After highlighting a piece of text and clicking of this edit button (say "bold") it the html-tags are pasted in.
Why this?
#1 It is comfortable even for people with html-knowledge
#2 You give non-htmler's the power to add same formatting to the text. More detail: people who are used to work with "Word" (or other Word-processors) could easily apply this edit buttons without the pressure to learn html-format.

In some of my projects I need to incorporate people, who are not safe with the use of computers and have poor experience/knowledge (but they have a computer and an internet connection). With this feature it is easier to cooperate with them using web resources. Demanding to learn html would possibly prevent them of cooperating.