How would i start my Private Cloud for SCCM ?

here is good to start article https://scug.be/blogs/sccm/archive/2011/08/11/download-the-latest-evaluation-software-to-build-your-private-cloud-with-system-center.aspx   

• 
  Windows Server 2008 R2 with SP1

Datacenter or Enterprise editions to look at Hyper-V

• Hyper-V Server 2008 R2 with SP1

Free Server just Hyper-V No Windows Server (Free)

• System Center Virtual Machine Manager 2008 R2 SP1

VMware , Hyper-V or Xen can both be managed by this current product

• System Center Virtual Machine Manager 2012 Beta

The 2012 version of SCVMM . A better way to manage any virtualization and can work with different fabric.

• System Center Operations Manager 2007 R2

Known as SCOM helps you monitor what’s going on real time with your operations

• System Center Configuration Manager 2007 R3

Known as SCCM, The product that helps you roll out clients or servers and properly configure them and baseline them.

• System Center Configuration Manager 2012 Beta 2

The next version of SCCM which is really a brand new product.