Advice on rich text component

[Guest Palindrome]

I would like to allow certain people to be able to create their own pages within the template of my website. Ideally I would like a rich text editor (something similar to the editor I'm using to type this message) that allows pictures to be uploaded to the server and then displayed. The code to display the page would then be saved in my MySQL database for me to code into the template.

Does anyone know of (a preferably free) online editor I can incorporate into my website template? Even something like eBay's auction page creation facility would be good.