The 2007 Giants had nothing to play for the last game of the regular season against the Patriots. It was a great game that the Pats won by a field goal. I always thought that gave the GMen the confidence they needed to go on their Super Bowl run.
Good call going for two there. If they make it they are a td an extra point away from taking the lead or two field goals away from tyeing. If Miami misses the 2 they know they know they have to score a td and go for 2.