Mike,
What you are describing sounds more like a source management system than a blog. You know, the standard collaborative groupware stuff, with checkin, checkout, and publish.
Where do you see the blogging coming in?
To me, blogging implies simply logging what you have to say at a single point in time, and being able to see your history of things said. People have the ability to comment on what you said.
So, when you get into the realm of security and collaborative posting and publishing, I think you are definitely going beyond the world of blogs. Not that there is anything wrong with that...just trying to understand what you might be looking for...
