Now that MOM 2005 has been released are publishing alot of documents that will help you deploy and plan for MOM 2005.  Read below for the Operations Guide that is now available for download.

The Microsoft® Operations Manager 2005 Operations Guide includes guidance and recommended best practices for backing up and restoring, maintaining, optimizing and monitoring Microsoft Operations Manager 2005 (MOM) in an existing IT infrastructure. This guidance is based on the supported MOM deployment architectures described in the Microsoft Operations Manager 2005 Supported Configurations Guide. Additional instructions are provided for managing agents across multiple domains, across firewalls, across slow links, and in workgroups. Detailed instructions are provided for each of the MOM components: the MOM Database, the Management Server, agents, consoles and the MOM Reporting Database. Detailed information about MOM security-related features and processes are provided in the Microsoft Operations Manager 2005 Security Guide.