This link will take you to a database of the Astros organization. I just updated this document for the off-season. A few notes about the database for your convenience.
The players in Red are on the 40-man roster.
The players in Light Blue are arbitration eligible
NOTE: For those players who spent all or part of the 2010 season in the Houston organization "2010 Team" only includes the time that the player was in the Astros organization.