Much like you had in the days of 2007, Microsoft has released a VHD of the SP1 of 2012.
http://www.microsoft.com/en-us/download/details.aspx?id=36428
This means that you don't need to be a SQL or AD expert to create your own lab to do basic tests. You can use this VHD for testing or even show other people how SP1 works on a very small scale.
