>#1 for Change Auditing
NetApp monitoring tool ($1380 for first file server, $500 per additional server)
Audits Group Policy changes and sends reports to administrator
Integrated regulatory compliance solution for SOX, PCI etc ($4673 for 150 users)
Free tool to audit server configurations and document changes
Integrated FISMA compliance solution for federal agencies ($4275 for 150 users)
Automatically disables inactive user accounts based on last logon time
Free tool to audit and report on administrative changes on SQL Servers
Detects Active Directory changes, archives and sends report to administrator
Freeware PowerShell cmdlet that searches for inactive users in Active Directory
IT infrastructure compliance auditing: who changed what in AD, VMware, servers