Dallas Mavericks +5.5 (50-32) at San Antonio Spurs -5.5 (54-28) O/U 189 9:30 PM ET Monday April 20, 2009 on TNTby Jason Green of Predictem.comTonight the Mavericks travel to San Antonio to try to take a 2-0 advantage over the Spurs in their first round of the Western...