College Previews Sneak a peek at this weekend's top matchups. sports_football_helmetface.jpg 60x45 p0 cnnsi_free.gif lock_icon.gif superpass.gif http://premium.si.cnn.com/pr/video/meta/sports/2002/11/05/okla_tam.np.smil?rpurl=http://sportsillustrated.cnn.com/ 10364348553230 OU vs. Texas A&M lock_icon.gif superpass.gif http://premium.si.cnn.com/pr/video/meta/sports/2002/11/05/tenn_pre.np.smil?rpurl=http://sportsillustrated.cnn.com/ 10364348553231 Miami vs. Tenn lock_icon.gif lock_icon.gif headline