Built test SCCM Environment
I used System Center 2012 Configuration Manager SP1: Mastering the Fundamentals to build my test lab.
I adjusted that lab setup to one SCCM Server, Two Domain servers, and three workstations. I followed most steps with setup of SCCM server, I had issues with SQL and SCCM setup finding each other. It is important to use the default install of SQL, do not add your own instance name to SQL server install.
This webpage helped understand more of the steps in setup and install of SCCM.
http://henkhoogendoorn.blogspot.com/2013/06/common-mistakes-during-configmgr.html
http://henkhoogendoorn.blogspot.com/2013/03/install-configmgr-2012-sp1-on-windows.html