Consulting Services for Southern California:
Apple Professional Services for Education
Techlogia
Creative Resources

General Mac OS X Server Resources:
Mac OS X Server Manuals
Bombich.com - For all your imaging needs.
Team Apple of San Diego:
Remote Desktop 2 - Send Unix Commands (reference)
10.3, 10.4 Tips
Server Setup Tips
Webcasts from MacEnterprise.org
Mac Networking by Richard MacLamale

Tools:
MCX Cache Cleaner - Mac OS X Installer package to clear MCX (Workgroup Managed Client for OS X) settings.
MM Import Helper - This is a (free!) program written by Richard MacLamale that can be used to create Mac OS X Server import files.
RsyncX - This is an open source app that can be used for imaging and backups.

Using Terminal/Unix tools in Mac OS X:
Unix for the Rest of Us
Learning Mac OS X Terminal
Yet another Mac OS X command line introduction

Current Reading:
Mac OS X 10.4 Tiger - An arstechnica review by John Siracusa
Introduction to System Startup Programming Topics
Advanced Bash-Scripting Guide - An in-depth exploration of the art of shell scripting by Mendel Cooper
OpenSSH Key Management by Daniel Robbins
launchd in Depth @ afp548

Recommended (technical) Podcasts:
Security Now - Steve Gibson and Leo Laporte
TWiT - This Week in Tech - Leo Laporte, etc.

Recommended (non-tech) Podcasts:
Issues Etc. - Todd Wilken and guests
You can download programs individually - or subscribe to the podcasts - the links for this will be at the bottom of the page.
A few of the exceptional guests that you will hear:
- John Warwick Montgomery
- Paul Maier
- Wesley Smith
- Francis Beckwith