Hey RyanK, I haven't been around in awhile, but I'll give you a heads up on this kid. He's going to be good. Orginally thought to have the ceiling of a #5 guy in the rotation or 'pen, he has really blossomed since being drafted in 2004 and is now viewed as having the ability to be a #2 starter in the bigs, which is huge for the D-Rays, as he could complement Kazmir and David Price as a triumvirate of power leftys at the top of a rotation as early as 2009.
Physically, he's added 2 inches and 20-25 lbs of muscle to his frame, and the projectability issues that came with him when he was drafted have gone away. His fastball now regularly sits at 91-94, and his secondary pitches have plus potential as well. Additionally, he's only 20 years old, so his ability to command all of his pitches to both sides of the plate will only improve, and if you can believe it, he already has polished command due to the fact that he was more of a control pitcher coming out of H.S. when he was drafted, when his fastball only peaked at 86-87.
Hope this helps.