LeBron James drove for an emphatic dunk during a decisive fourth-quarter run and went skipping to the bench after a Dallas timeout. The Miami star has sure had fun against his old nemesis this season. James scored a season-high 42 points and the Heat tuned up for a showdown with Oklahoma City by beating the Mavericks 117-106 Tuesday night. Read more http://scores.espn.go.com/nba/recap?gameId=400489671
