[GENERAL] Optimzing Postgresql

Hi,

I am deciding between MySQL and Postgres. I'm leaning towards Postgres mainly due the widely publicized speed when using transactions. However, I am not able to find any good books / resources for tuning/ optimizing the database. Is there a book like "High Performance MySQL" for Postgres that teaches what the different parameters are and how to tune them?
Or do most techniques covered in the High Performance Mysql apply to Postgres too?

Thanks,

Ram