I'm not sure what kind of info you're looking for. Try these for the standard (non-shoal keel):
30': C&C 30-1 (1-506) sailboat specifications and details on sailboatdata.com
33': C&C 33 sailboat specifications and details on sailboatdata.com
The line drawings might give you some insight into the layouts, and the dimensions are all there for comparison purposes. Even with the line drawings, I still have trouble envisioning the boat sometimes, so I find this site helps:
C&C Sailboat Photo Gallery
You can also search Yachtworld or Sailboatlistings to get additional pictures.