Was going to say something similar - I don't think it's that we talked too much, its that we believed all the talk that we heard.
The team was WAY too amped (hell, so was I, bouncing all around my living room) and it showed in their play. I think they also believed the hype - we hate these guys, it's our time, we're the more talented team, etc. Heck before the game on one of the shows they quoted an anonymous NFL exec saying the Bills D is punishing and intimidating and could be as good as the 85 Bears.
I think we believed the hype and let's hope that this slice of Humble Pie / Slap to the Face refocuses the team!