Pretty much all your guys except Heyward & Dominguez took a step backwards in 09 to some degree. Heyward's your only true elite prospect, but he is the best in baseball. Martinez should be around a top 25 guy. The fact that he's a 20 year old in the majors will allow most to overlook that he didn't hit much. However, the 4th injury in 3 seasons is concerning.
Parker, Dominguez & Castro could both be anywhere from 40-100. Parker could be higher if not for his elbow injury. The good news is it sounds like he'll avoid Tommy John. Dominguez K rate went down in the FSL which is a good sign, but he was overmatched in AA. He's still young and should be ranked higher than his fantasy worth because many think he's a top defender. Castro's ranking could be all over the place. There's a very good chance he's a MLB catcher soon, but how much upside is their?
Lambo and Holt are both fringe top 100 guys with lots of upside. The other guys probably won't make any top 100 lists, but are worth keeping since your league is 200 minor leaguers deep.