The TechNet team has a released a virtual lab that lets you get some experience with User Account Control even if you haven’t installed it on any of your machines. And if you have Windows Vista installed, the tutorials can help you learn about User Account Control in a more structured way. My only caveat about these labs is that Windows Vista is much cooler in person. These desktops are running the Windows Standard theme, which looks like Windows 2000, and the performance is not 100% snappy. But it is a good primer on UAC basics.  There are also labs on the new firewall, group policy settings, and the User State Migration Tool.

http://www.microsoft.com/technet/traincert/virtuallab/vista.mspx

- Alex Heaton