Dice-K had that no hitter going at Philly. Though, I didn't actually see the game, so I don't know how dominant he was, but I think it was better (until he gave up a hit, of course) than Edwin Jackson's 8-walk effort.
I think Dice-K right now is about where his true talent level is. I think he could maybe have a 3.5 ERA season in the future, but I'm not sure whether that will happen.