LeBron James finally got a Game 7 victory, on his third try. Next up, the NBA Finals -- and his third try at that elusive first championship. A year after watching someone else celebrate on their home floor, the Miami Heat were the ones dancing at midcourt. James had 31 points and 12 rebounds, Chris Bosh hit a career-best three 3-pointers -- the last sparking the run that put it away -- and the Heat won their second straight Eastern Conference title by beating the Boston Celtics 101-88 in Game 7 on Saturday night.