You need a PC-based laptop pre-loaded with XP or greater. You need 4GB or more of RAM. You don’t need to “pre-create” anything before purchasing the Group Policy Online U or coming to a live class.
It’s provided to you if you opted to purchase the class materials.
Your machine DOES need to be 64-bit capable. There’s a little test utility you can run to ensure your laptop is 64-bit capable.
It’s here: http://tinyurl.com/VMware64bitcheck.
There is a more information inside the Group Policy University Welcome letter with a PDF attachment called “Exactly How to Ensure Your Laptop Will be Prepared For Class.” It’s super clear, easy to follow, and even has a checklist.