Well, just for fun... since I've never done this before...
(BTW, I would've picked the Colts and Falcons to win, too, with Colts vs. Giants in the Superbowl)
AFC Divisional Round
Chargers @ Steelers (A low scoring running game if the Chargers can confuse Roesthlisburger like they did Manning, but Pittsburg's defense will come out on top)
Ravens @ Titans (A playoff bye kills any momentum)
NFC Divisional Round (both blowouts)
Cardinals @ Giants
Eagles @ Panthers
AFC Championship Game
Ravens @ Steelers (As much as I want the Ravens to win, I think Flacco gets tired after 19 games, but it will still be close.)
NFC Championship Game
Panthers @ Giants (I just don't think the Panthers will stack up to a good team. Don't they have one of the easiest seasonal strength of schedules of all playoff teams?)
Superbowl
Steelers vs Giants
Now, I've heard/read somewhere that if the Chargers won, then the Ravens would play the Steelers. In that case, it would be the Titans over the Steelers, but losing to the Giants in the superbowl.