How to add a banner / promo area close to the thread top?

I would love to add a graphical banner of sorts just under my forums sub title text.
It would need to be in the standard theme look and feel and have a graphic and be clickable so I can take users to a forum page about a contest. I think I saw a XenForo demo video that created a cool rotating graphical media area, but that might be only for v1.1