Based on Amazon reviews and others in the PG community, I would 100% get something like this. High Availability / Fail Over are my biggest concerns with PostgreSQL Database.
So, Packt approached me a few months ago and asked me to put together a very basic series of short step-by-step instructions on backing up PostgreSQL. The title is "Instant PostgreSQL Backup and Restore How-to."
I tried to cover all of the basic approaches used by most admins, and I tested it on a guy at work who's a SQL Server DBA but recently took over care and feeding of a PG database. He said it was easier to understand than the documentation, at least for just getting everything working and sorting out more advanced details later.
I know it's not exactly Greg Smith's performance book, but I'm glad to contribute how I can. I'm not entirely sure it's worth adding to the book page: