"Do you know the security status of your network? Get a visual. The Visio Connector for Microsoft Baseline Security Analyzer (MBSA) lets you view the results of an MBSA scan in a clear, comprehensive Microsoft Office Visio 2003 network diagram. You must have both Visio 2003 and MBSA, a free security tool from Microsoft, for this connector to function. The Visio Connector for MBSA has been updated to support both MBSA 2.0 and MBSA 1.2.1."
Sounds pretty cool - needs to be tested asap ;-)