Dallas Mavericks (55-27 SU 36-44-2 ATS) vs. San Antonio Spurs (50-32 SU 43-39 ATS) AT&T Center, San Antonio, TX 8 PM EST Thursday April 29, 2010 on TNTby Jason Green at Predictem.com Point Spread: Mavericks +3.5 / Spurs -3.5Over/Under: 191 Wager on NBA Playoff...