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.

Download: SubscriptionTool.zip

SCOM Remote Maintenance Mode Scheduler 2.0 

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.

Download: SCOMRemoteScheduler2.0.zip