The new Admin4 release is the first to contain a greatly enhanced PostgreSQL module. It includes:
Favourites, Snippets and Presets are stored centrally in the database, making them available for roaming usage. Your day-to-day code snippets, standard filters and frequently used objects are right there no matter which workstation you're using to maintain the database.
Download it here from sourceforge, it's free (Apache2 licensed). Contributors/testers for this fresh project are welcome!