Here are some screenshot from some mod for phpBB. Although it's in french I can see it has some interesting features. :)
http://img405.imageshack.us/img405/1084/co...tebannerny1.png
http://img443.imageshack.us/img443/1750/co...ebanner2ge9.png
http://img528.imageshack.us/img528/6391/co...ebanner3if2.png