Opening classipress to the community
I think you should open a special section for classipress where users can sell things they have made for your system. This will open your community for huge growth and potential earning avenues.
Themes for classipress (re-skinning etc)
Plug-ins for classipress
Obviously people will need to validate their purchases prior to being able to download these files.
I would very interested in creating themes for classipress.