The only good resource I've been able to find in reference to setting up a Cisco ASA 5510 firewall has been here: http://www.cisco.com/en/US/products/ps6120/products_configuration_guide_book09186a0080450278.html
The problem with that 'book' is that it only describes functionality and not best practices for hardening the firewall. This is the first cisco firewall I've setup so I'm using the GUI, although I have no problem using the command line if need be.
So... what I'm looking for are some links to some really good articles, tutorials, and howtos explaining how to setup a Cisco ASA 5510 and to ensure that my network is secure. (I need more then "this functionality does this"; I want "this functionally does this AND you'll want to do this because..." make sense?)