Solution Manager and Capacity Management

I have been tasked to create a document that covers Capacity Management for our SAP Systems.  Now I know that Solution Manager has been ITIL Certified Service Operations processes such as Capacity Management. I can not find a good document (doc, pdf) that describes how Solution Manager covers the subject.  I have seen a couple of powepoints that shows the various monitoring workcenters and Capacity but has someone written description. If there is someone out there that has put together a good description of Capacity Management in Solution Manager using the various workcenters that would really help in my task.