Phillip,
> I am looking for the latest pgbench and documentation.
Currently they are packaged with the PostgreSQL source code.
However, if you're looking for a serious benchmark, may I suggest OSDL's DBT2?
It's substantially similar to TPC-C.
http://sourceforge.net/projects/osdldbt
What's your interest in benchmarking PostgreSQL, BTW?
--
Josh Berkus
Aglio Database Solutions
San Francisco