bemdesign on "Database name is known – is this a security issue?"

Use a local install of WordPress (use MAMP or WAMP). If you're not using standard ports and if you're behind a router that is not DMZ'd (available over the internet), you can fairly safely give out as much detail as you want on your local WordPress install.

Although good security always dictates only share as much information that is needed and no more and only share to those with a need to know.