I am looking in to using SCS to provision clients for use with SCCM 2012. There are directions /community/vproexpert/blog/2012/08/10/now-available-guidance-for-ms-sccm-2007-intel-scs here and http://blogs.bamits.com.au/2012/09/integrating-sccm-2012-with-scs-81.html here on how to integrate that I am researching. I have a couple of questions for someone who has done this already.
One of things that I use to do with success and RECOMMEND is: Use Intel SCS to handle all provisioning process, then import the provisioned machines into SCCM (2007 or 2012). Intel SCS is specifically to handle this kind of job and will work much better. SCCM will be then used to make the management of your assets and computers, taking care of vPro machines as well. But remember, vPro features present in AMT versions greater than 6.1 will useless through SCCM 2012.
Hope, this helps you.