A Great place for SCOM scripts

Check out Boris Yanushpolsky's blog (http://blogs.msdn.com/boris_yanushpolsky).

Boris is an SCOM Program Manager focusing on SDK and PowerShell.

Utilities documented and available on his blog include:

• Putting a computer into Maintenance Mode using PowerShell http://blogs.msdn.com/boris_yanushpolsky/archive/2007/07/25/putting-a-computer-into-maintenance-mode.aspx
• Put specific components into Maintenance Mode
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/10/19/what-if-i-dont-want-to-put-the-whole-computer-into-maintenance-mode.aspx
• Take a group and puts all computers in the group (including the health service and healthservice watcher) into Maintenance Mode http://blogs.msdn.com/boris_yanushpolsky/archive/2008/03/04/one-more-maintenance-mode-script.aspx. This is enhanced at http://scom2k7.blogspot.com/2007/08/new-maintenance-mode-tool-for.html by Timothy McFadden. and at System Center Forum at http://systemcenterforum.org/wp-content/uploads/GroupSchedMaint.txt.
• Display what is in Maintenance Mode
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/06/so-what-is-in-maintenance-mode.aspx
• PowerShell script to stop Maintenance Mode
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/30/stoping-maintenance-mode.aspx
• Enabling proxying for agents - select a computer group, browse the members, and multiselect the right computers and enable/disable proxying.
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/02/enabling-proxying-for-agents.aspx. An improvement was developed by Clive Eastwood which you can get at http://ianblythmanagement.wordpress.com/2007/09/14/agent-proxy/.
• Disabling/Enabling multiple rules/monitors/discoveries at once
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/04/disabling-enabling-multiple-rules-monitors-discoveries-at-once.aspx
• PowerShell scripts showing what diagnostics and recoveries exist in your installation
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/06/so-what-about-diagnostics-and-recoveries.aspx
• A PowerShell script to help show the thresholds your monitors have
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/07/so-what-thresholds-do-my-monitors-have.aspx
• PowerShell script to list all the performance collection rules in a management group
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/07/similar-script-but-for-perf-collection-rule.aspx
• Override Explorer – show what overrides exist in a management group (nice!)
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/09/override-explorer-v3-3.aspx (version 3.3)
• Automate setting up URL monitoring, doing it in batch
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/11/automating-the-setup-of-web-site-monitoring.aspx
• Automate port monitoring using PowerShell
  http://blogs.msdn.com/boris_yanushpolsky/archive/2008/06/20/automating-port-monitoring-using-powershell.aspx
• PowerShell cmdlet that uses the SDK to add/remove users to a user role - this one really helps!
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/13/adding-users-to-a-user-role.aspx
• Use PowerShell to specify a RunAs Account for a RunAs Profile
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/10/16/specifying-a-run-as-account-for-a-run-as-profile.aspx
• Configure a Run As profile for agents in bulk using the Run As Profile configuration helper
  http://blogs.msdn.com/boris_yanushpolsky/archive/2008/02/28/run-as-profile-configuration-helper-v1.aspx
• The MPViewer – display what’s in a management pack before importing it! This one is very popular and had gone through numerous enhancements
  http://blogs.msdn.com/boris_yanushpolsky/archive/2008/06/25/mpviewer-1-7-now-works-with-latest-e12-mp.aspx (many updates, now at 1.7)
• Script to convert a sealed management pack to readable XML (also discussed in System Center Operations Manager 2007 Unleashed)
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/08/16/unsealing-a-management-pack.aspx
• Use PowerShell to dump what’s in a management pack
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/10/10/what-s-in-my-management-pack.aspx
• Backup script to export mangement packs – this can run on any computer (not just the RMS) that has the OpsMgr console and Command Shell installed. http://blogs.msdn.com/boris_yanushpolsky/archive/2008/04/30/mp-backup.aspx. System Center Operations Manager 2007 Unleashed also has backup scripts, if you have purchased the book. 
• Display what discoveries are disabled by default
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/10/08/disabled-discoveries.aspx
• Find out what groups a particular computer is a member of
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/10/26/which-groups-is-a-particular-computer-member-of.aspx
• Retrieve all groups and then contents of each group and the types of objects contained in each group
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/10/26/creating-an-event-log-unit-monitor-using-the-sdk.aspx
• Use the SDK to create a unit monitor
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/10/26/creating-a-unit-monitor-using-the-sdk.aspx
• Use the SDK to create an Event Log unit monitor
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/10/26/creating-an-event-log-unit-monitor-using-the-sdk.aspx
• Use the SDK to create a performance collection rule
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/11/02/creating-a-performance-collection-rule-using-the-sdk.aspx
• Use the SDK to create overrides
  http://blogs.msdn.com/boris_yanushpolsky/archive/2008/01/17/creating-overrides-using-the-sdk.aspx
• Retrieve rules and monitors targeted to a particular class (target)
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/11/21/retrieving-rules-and-monitors-targeted-to-a-particular-class-target.aspx
• Enumerate Windows Event log manual reset monitors
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/12/09/enumerating-windows-event-log-manual-reset-monitors.aspx
• Create a new task with overridable parameters
  http://blogs.msdn.com/boris_yanushpolsky/archive/2007/12/11/creating-a-new-task-with-overridable-parameters.aspx
• Module Explorer – provides some visibility into the library of modules and information about each module
  http://blogs.msdn.com/boris_yanushpolsky/archive/2008/06/18/module-explorer-v2.aspx