I watched the episode again at lunch today, and noticed a couple little things I didn't notice the first time (because I was drunk and/or tired).
like, when Ser Rodrick(?) comes in to tell Bran that the other town is under attack, and Bran tells him to take the men to defend it, there's some creepy guy milling around in the shadows kind of listening in. I figure they wouldn't show that if it wasn't important. maybe a Greyjoy plant?
and also how bad*ss Ghost looks while standing on the hill watching the night watch guys set up camp in the snow. he looks huge!