Is there any easy way to make the free templates available to users for download, or have them all preloaded into a client's account? Right now, I would have to go through all 30+ zip files, change the file/folder names since they all say "campaign monitor" all over the place. Obviously for transparency we don't want this.
Yes, you would need to manually edit them. The idea of Campaign Monitor is that is meant for web designers, who provide custom templates for their clients.
So we're really trying to give you a solid base to work with and design from, rather than a template you can just upload and go.