While watching the show Spartacus, I noticed the gladiators were using their shields not only for blocking (of course) but as weapons also, kinda like two weapon fighting in DDO. Not only do they bash with the flat side of the shield, but also would angle the shield to strike with the edge. I have noticed this in other movies too, such as Gladiator.
I know you can shield bash in the game, but its not the same as you see in the show or movies. So I was thinking it would be nice to be able to use a shield more as a weapon sorta like two weapon fighting. Maybe have a feat that allows you to include a shield strike within the attack chain, which would add an extra attack. Maybe a fighter feat line or something similar to the tempest line.
I know this would be a lot of work on the dev side, but I think it would bring something to the sword and board fighter.
edit: By the way, the suggestion I'm making is using the shield within the attack chain while welding a sword.....just to be clear...