I was just browsing the IT Pro course catalog over at http://www.microsoftelearning.com, and noticed that there are a TON of free courses relating to Security.  There are some non-security free courses as well (related to SQL Server 2008, Windows Server 2008, and a few others), but the price is sure right.  Go check it out!

Clinic 2801: Microsoft® Security Guidance Training I

Summary: This online clinic provides students with introductory knowledge and skills essential for the design and implementation of a secure computing environment. It also provides students with prescriptive guidance on security update management and best practices for implementing security on Microsoft Windows® server and client computers.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 2802: Microsoft® Security Guidance Training II

Summary: This online clinic builds on existing knowledge of server and client security and provides students with the knowledge and skills to apply best practices to implement perimeter and network defenses and enhance security for applications and Microsoft® Windows Server System™ components. It also provides students with prescriptive guidance to enhance security for Microsoft Windows® server and client computers and practical strategies for implementing security for wireless networks.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 2803: Microsoft® Security Guidance Training III

Summary: This online clinic builds on existing knowledge of server and client security and provides students with the knowledge and skills to apply security best practices for Microsoft® Exchange Server and to use Microsoft Internet Security and Acceleration (ISA) Server 2004 to improve security at the network perimeter. It also provides students with prescriptive guidance to implement layered defenses against malicious software and measures to increase security for Microsoft Windows NT® 4.0 and Windows® 98 network clients.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 2804: Microsoft® Security Guidance Training IV

Summary: This online clinic provides students with prescriptive guidance that builds on their knowledge of security essentials to help them improve security for their infrastructures.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 2806: Microsoft® Security Guidance Training for Developers

Summary: This online clinic provides students with knowledge and skills essential for the creation of applications with enhanced security. Students will learn about the need for implementing security at every stage of the development process and best practices for applying security principles. Students will also learn how to use established threat modeling methodologies and tools with other best practices to minimize vulnerabilities and limit damage from attacks. Finally, students will learn how to implement security features to enhance security for Web applications and Web services that are built by using Microsoft ASP.NET.
Audience: Developer
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 2807: Microsoft® Security Guidance Training for Developers II

Summary: This clinic discusses best practices for building security into the design, development, testing, and deployment phases of the software development life cycle. It is targeted towards individual with at least one to two years of programming experience. The course will provide developers with the skills and knowledge to design and develop more secure Microsoft solutions.
Audience: Developer
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 2808: Microsoft® Security Guidance Training V

Summary: This clinic builds on existing knowledge of server and client security and provides students with the knowledge and skills to apply best practices to securing Microsoft® Exchange Server clients, protecting e-mail and data content, securing services and critical accounts, and securing administrative accounts and remote access using smart cards.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 2855: Managing Security Enhancements in Windows Server™ 2003 Service Pack 1

Summary: This online clinic will show systems administrators and system engineers how to implement, deploy, support, and configure Windows Server 2003 SP1 security enhancements. It will provide in-depth information on the security changes in SP1 over previous versions.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 6078: Deploying Microsoft® Forefront™ Client Security

Summary: This online clinic will provide the knowledge necessary to understand the key features of Microsoft Forefront Client Security, as well as the considerations for deploying Forefront Client Security in a network environment.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 6079: Managing and Troubleshooting Operations in Microsoft® Forefront™ Client Security

Summary: This online clinic will provide the knowledge necessary to manage Microsoft Forefront Client Security in a networked environment, as well as how to troubleshoot issues that may occur in a Forefront Client Security deployment.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year

Clinic 6080: Deploying Microsoft® Forefront™ Server Security Products

Summary: This online clinic will provide the knowledge necessary to understand the key features of Microsoft Forefront Server Security for Exchange, and Microsoft Forefront Server Security for SharePoint.
Audience: IT Pro
Available Offline: Yes
Price: FREE
Subscription: 1 year