3. Troy Tulowitzki, SS – In his first season as the starting shortstop, Tulowitzki showed that he is a top-level fantasy performer. He finished second in the NL Rookie of the Year voting, hitting .291 with 104 runs scored, 24 home runs and 99 RBIs. For now, Tulowitzki is only the fourth-best shortstop available, but that's only because of the NL East trio of Hanley Ramirez, Jimmy Rollins and Jose Reyes. If Tulowitzki posts similar numbers in 2008, then he'll cement his place among the top shortstops.