The matchup for Super Bowl 45 in Dallas is all set.  The Green Bay Packers will take on the Pittsburgh Steelers for NFL supremacy in a battle of storied franchises at Cowboys Stadium on Sunday, February 6th.  B.J. Raji's 18-yard interception return for a touchdown proved to be the winning score as the Packers beat the Chicago Bears, 21-14, in the NFC Championship Game at Soldier Field.  The Packers advanced to their fifth Super Bowl and first since January, 1998.  In Pittsburgh, William Gay returned a fumble 19 yards for a touchdown as the Steelers built a 24-0 lead and hung on to beat the New York Jets, 24-19, in the AFC Championship Game at Heinz Field.  The Steelers advanced to their eight Super Bowl and are seeking their seventh NFL championship.