Dundee-Crown students watch in suspense during a game earlier this season. Basketball fans can expect plenty of excitement as the Class 4A and 3A playoffs begin this week. | Erik Anderson~For Sun-Times Media
For three months, the high school basketball season builds like a steady crescendo. Then the postseason arrives and the intensity level goes on full blast. Words can hardly describe the change in atmosphere as teams go from playing run-of-the-mill regular season games to single-elimination playoff …