This post belongs in user requests, first of all;
And, Just so you know,
MED Is a very useful program once you know how to use it; maybe not as good as blender(Less shortcuts, and such) but I can do some very good things with it, take my simpsons pack for example, I only used med for that...
What you need, is someone to model you a baseball player, with all the animations required to make a whole game, basically; So you probably wont get this done for free, or cheap, since animation is very hard, nevermind creating the model to begin with, and the skin,
Also, welcome to the forums

Devon Lively.