Having the ability to create service templates are an excellent addition to System Center 2012 Virtual Machine Manager (VMM) and I wrote up a post last year on how to create a basic service template here:
Microsoft have now expanded on this concept and you can download service templates for Windows Server 2008 R2 and Windows Server 2012 to deliver automation of your server role deployments in a private cloud environment.
Use the new service templates to automate tasks, and reduce deployment time and cost by dynamically provisioning services that require Windows Server 2008 R2/2012 server roles for customer facing services.
The Service Template Explorer is an add-in that you can use in SCVMM to quickly discover and download new service templates from Microsoft - how cool is that!
To get access to these downloads, you will need to logon to the Microsoft Connect site and register for the BETA bits here:
The downloads come with some informative quick start guides that will walk you through the installation and configuration process in no time.