One of the solution accelerators Microsoft released is the Service Level Dashboard. What it does is create a dashboard on top of Windows SharePoint Services which shows service level objectives you have set.
There are a few very good resources out there and I will link them here.
The TechNet page:
http://technet.microsoft.com/en-us/library/dd630553.aspx
Posts by Jonathan Almquist:
http://blogs.technet.com/b/jonathanalmquist/archive/2010/04/10/service-level-dashboard-2-0-installation-considerations-and-guidance-part-1.aspx
A post by Marnix Wolf:
http://thoughtsonopsmgr.blogspot.com/2009/05/scom-r2-service-level-dashboard-mp.html
