Statistically, New Orleans has the 26th ranked defense in the NFL. They gave up over 500 yards to the Vikings in the NFC title game. The only reason New Orleans came out on top was because the Vikings committed five turnovers. Peyton and the Colts won't make that many mistakes. I don't care how many points the Saints can put up, they won't keep up with the Colts. Indy's defense is much better than people give them credit for.
Also, football games aren't won on emotion. You have to show up to play. I think the Saints are going to come out a little bit over hyped and make mistakes. When that happens, the Colts will jump all over them.