Clemens, Bonds, Maddux, Glavine, Griffey, Pedro, Hoffman, Piazza, I-Rod, F.Thomas, Biggio, Randy Johnson all get in pretty easily. Probably Schilling too.
For active players Rivera, I-Rod, Pujols, Thome, Vlad, Jeter, Chipper, Vizquel, Ichiro, are all pretty much locks. Damon too if he can squeak out 300+ more hits. Possibly Posada but he'll need to end his career with more dignity than he's shown this season. A third ring could seal it for Varitek with all of his caught no-hitters.
Ichiro gets in first try if even if he never played in Japan, quits the MLB tomorrow, and gets arrested for stealing Ty Cobb's bat from actual Hall Of Fame.
Manny, Sheffield, Sosa, Ortiz, and McGuire will all remain out of the HOF.
Pedroia are Ellsbury are WAY too young to venture a guess. Youkilis has no shot whatsoever. A-Gon isn't even at the halfway point. Nomar seemed like a lock but as someone stated earlier, that's why it's the last five years that count the most. Also, there might not even be a DH in ten years which would end a few careers early.