I am building a class around the idea of a Marshal, Iaijutsu Master, a feat that cowers anyone you demoralize from DotU, and a skill trick that lets you demoralize everyone in range. Only issue is its a standard action to use intimidate is such a way. Best I have found is the Avenging Executioner from Complete Scoundrel. Which can make it a move action and also allows me to treat all shaken, frightened, panicked creatures as flat footed. I'm hoping to get it down to a swift action.