The Operations Manager product team blog just posted some great information on what you need to know about upgrading and deploying System Center Operations Manager 2007 R2. Some of the big changes include:
Operations Manager R2 also supports upgrading from SQL 2005 to SQL 2008. Only the Operations Manager Reporting role require special instructions. Detailed instructions can be found in the upgrade guide. Upgrading SQL Server 2005 to SQL Server 2008 Link
Operations Manager supports the following upgrade paths:
To continue reading see What’s new in R2 Deployment and Upgrade.
J.C. Hornbeck | Manageability Knowledge Engineer