Just came across this tool called Microsoft BaseLine Security Analyzer which scans the PCs of choice (either the local system) or the PC that you are intending to scan on the network. Of course, you must have privileges to scan the destination PC.
It scans the systems for SQLServer, Windows Security Updates etc. It further analyzes Window User Manager and gives you hint whether the passwords are strong and number of administrators for the system etc.
This would be a handy tool to keep the system secure, since the Slammer and similar viruses used the blank and weak passwords of the SA account. Is'nt it? Perhaps a definite tool that must be with any system administrator or helpdesk personnel. Perhaps common users intending to keep their PCs secure, if they want to test and keep thier PCs secure and for them it is really a valuable tool.