Yes, 20MB for a database! That's is indeed too little... for Kentico. The reason it works like that, is because the bigger the databases, the more database servers the hoster needs to install, so licencing costs go up.

I have managed to get the database of Kentico down to 12 MB by not installing webparts, metafiles, countries and states, badwords and email templates. But it will start to bloat once I create a site.

I see two solutions:

1. Storing files (images, PDFs etc) on disk.
2. Using a MySQL database (up to 400MB without added cost in our case).

Are these things possible?