PostgreSQL training recommendations?

Hi pgsql-general,

I'm looking for advice on good training courses for PostgreSQL (on- or off-site, on- or off-line).  I'm hoping to find something that can cover basic administration, performance optimization topics, and clustering tools like Slony and pgpool for someone.  I realize that PostgreSQL documentation is a great resource, but I'm looking for something more intensive and expert-driven.  Do any of you have recommendations based on courses you took, had colleagues take, or teach yourself?

Thanks in advance,
Matt Kappel