The following Virtual Machines are now available for System Center 2012 SP1 CTP2 evaluation:
App Controller : http://www.microsoft.com/en-us/download/details.aspx?id=30163
Operations Manager : http://www.microsoft.com/en-us/download/details.aspx?id=30164
Orchestrator : http://www.microsoft.com/en-us/download/details.aspx?id=30162
Service Manager : http://www.microsoft.com/en-us/download/details.aspx?id=30165
Virtual Machine Manager : http://www.microsoft.com/en-us/download/details.aspx?id=30166