Sources of network security templates or designs

[Sean Donelan <sean () donelan com>]

While every network designer/architect with an emphasis on security has 
his or her favorite design templates, I'm wondering what public sources 
do people start with?

   Cisco SAFE and other published designs
   IBM Redbooks
   DOD Security Technical Implementation Guides (STIGs)
   NIST Special Publications
   O'Reilly series (specific books?)

Of course, every designer customizes things based on the project and
preferences.  So I'm not asking for what's best, or even what's wrong
with particular sources.  Just where do you start?