An entire week of webcasts can be registered for at the ISA event site
"Whether you plan to upgrade to Internet Security and Acceleration (ISA) Server 2004 or want to learn how to get the most from your current ISA deployment, this week of technical webcasts illustrates how ISA 2004 can help you maintain a secure and performance-driven network. Covering everything from technical overviews and usage scenarios to deployment and troubleshooting, our experts will explain how to use ISA Server 2004 to improve network security without sacrificing performance. You'll also learn more about partner solutions designed to extend the capabilities of ISA Server in areas such as anti-virus and content filtering. Join us January 17-21, 2005, for this week of webcasts."
This is great content which will make it easier for you to conduct business with less risk.