Once again, we're looking at a busy weekend in the Pittsburgh sports world. Two Pens games, including a big one tonight for all you Brent Johnson fans; a little matchup on Sunday between the Steelers and Vikings; and in the college world, tomorrow's Pitt-South Florida showdown, at Heinz Field, featuring the school's first-ever "Blue Out".The idea to coordinate the clothing of everyone in attendance is certainly not a new one in sports, lest we forget the numerous white-o...