Basic HTML Content iView

I'm looking for a fairly simple portlet to display HTML content. I'd like content to be 1) updated via the rich text editor, 2) by a content administrator, 3) via a web-based interface, 4) that does not require the creation of a file, and 5) inherit the stylesheet being used.

This might be similar to the inline-edit or contextual-editing features found in other portal products. Essentially, I want to see a portlet on a page, click a properties button, change the HTML content of the portlet, click save, and have it update.

This purpose of this type of portlet would be to add some trivial message about the purpose of the role, e.g. 'Welcome to XYZ role! Here you will find ABC and 123. To learn more about ABC and 123, please contact...'

I've tried the URL iView, but don't like the need to go create an actual file somewhere. I've tried the KM Document Viewer iView with both HTML and TXT files in KM, but don't like that it doesn't inherit the stylsheet.

Any thoughts?