Attached is a .vss file which is a visio stencil for SCCM. Above are the tools available in that .vss file. You can open this with any version of MS Visio and design a diagram of your SCCM infrastructure and impress your manager. ;)
Open visio either by Start -->All Programs -->MS Office -->MS Visio
or in run type "visio" without quotes.
Go to File->Shapes->Open Stencils and browse this stencil and you are all done.