This Jump Start Training was held live last month and now it is available as a recordings. This course is led by Microsoft Senior Technical Evangelist Rick Claus and Ed Liberman from TrainSignal. The course is divided in 12 topics which can be found as separate videos here.
System Center Service Manager free webinar
System Center 2012 Self-Study Guides
If you are looking for self study materials for System Center 2012. Here are 3 link where you can find a lot of links to different materials:
Windows Server 2012 Training Tracks
Microsoft offers another training track this time for Windows Server 2012. The training tracks are divided deepening on your role in your IT department. Take a look at the training track here.
Resources to learn PowerShell
Here is a great article where are gathered links to a training materials for PowerShell. The resources are provided in a form of contents. If you want to learn PowerShell and spend minimum finances start by opening this article