The Windows SharePoint Services 3.0 and Microsoft Office SharePoint Server 2007 (including SP1) Solution Accelerator for System Center Ops Manager 2007 Management (SCOM) has finally come out of Beta. If your running MOSS and want to get rid of all those annoying errors in the event log created by the Beta SCOM client then this might do the trick.
Get it here:
Sharepoint Monitoring Toolkit