Deckard is a simple, curses based, database front-end written in python. The idea is to make something like Microsoft Access, using curses screens, and independent of the database engine.
Belzebub is a tool for searching for files on all your removable media disks (e.g. CD's, ZIP disks or backup tapes). The search is based on a SQL database (Postgres, sqlite, mssql are planned in the future).