Thought I'd point out, for those wondering how long Dean's going to be laid up by that leg cast, that he won't be in the cast for episode 7x05.
I know this for a fact because I saw them filming that episode while up in Vancouver at the end of August. No leg cast on Dean.
So either the cast is on his leg until the end of 7x04 or it comes off at the beginning of 7x05. Guess we won't know unless we see some episode stills of the 4th episode.