MP2XMLPRO is a GUI based tool I created to export MP files to XML.
Subscription Tool is a simple GUI based tool that lets you enable and disable all notification subscriptions. This tool is useful if you need to do some major maintenance such as patches, upgrading hardware, redoing AD integration roles, or fixing a major problem.
SCOM Remote Maintenance Mode Scheduler is a GUI based tool that lets administrators easily schedule maintenance mode for a server or group of servers inside System Center Operations Manager 2007.
Subscriptions copier is a simple tool for copying subscriptions and helping with alert escalation. I created this tool after multiple customers have asked me why they couldn’t copy an existing subscription.
MPViewer 2.3 is an excellent tool used for exporting SCOM Management Packs to readable Excel and Html files. This tool was recently updated by Daniele Muscetta of the SCOM Product Team.
SCOMR2 Authoring Resource Kit
Visio MP Designer
Alert Update Connector 2.2
Report Viewer controls http://www.microsoft.com/en-us/download/details.aspx?id=35747