I finally finished work on the first version of an enhanced Baseball Databank/Lahman database. Obviously, this database will not work with the game, unless you move some columns around and delete the columns not contained in the original Lahman/BDB tables. A write-up with table defintions and data sources is coming. I'm not afraid to say that this is the most complete and accurate baseball database around. I provided a database shell (MS Access). You'll have to manually import the tables. Here's the database link:
BDB 2010 v0.1.zip