bk - As for "watching" "Mad Men" - Any time I've tried (re)watching a couple of episodes back to back, I've found that there was just too much "stuff" to take in. It's a very dense show on many levels, and, at least for me, needs some breathing room in order to be fully appreciated. Maybe you should just watch one or two at the most each day.
As for the second season - Once the main story line gets going, it's a pretty good ride. -At least I thought it was.