Where to find Management Packs for SCOM?

The startingpoint for finding Management Packs is the System Center Market Place provided by Microsoft Pinpoint:
http://systemcenter.pinpoint.microsoft.com/en-US/applications/search/operations-manager-d11?sort=released&q=

But, what if you are looking for a Management Pack from a third party?
There is an “Unofficial System Center Catalog” available where you can find many third party Management Packs:
http://unofficialsystemcentercatalog.wordpress.com/2011/04/22/opsmgrcatalog/

Increase Operations Console refresh rate

You can set the refresh rate for the Operations Console by setting the following registry key:

HKCU\Software\Microsoft\Microsoft Operations Manager\3.0\console\CacheParameters\PollingInterval
Values 0 – 10. 0 turns off automatic refresh and requires manual refresh via F5. The value 1 through 10 increments the refresh interval every 15 seconds. The maximum value of 10 is a refresh interval of 2 min 30 seconds. As you can see the root hive is the HKCU so this is a per user setting.

Reference: http://www.bictt.com/blogs/bictt.php/2011/06/01/scom-trick-20-increase-console

Check Database Size

There is a standard SQL report that shows how much space a database is using. In SQL Server Management Studio for SQL Server 2008 R2 and newer, right-click on the database you are interested in and select Reports->Standard Reports->Disk Usage.

There is a good description of this report, including information about how to resize a Operations Manager database in the SCOMfaq.ch blog: http://blog.scomfaq.ch/2012/06/26/scom-check-size-of-databases-sql-standard-reports/