I just ran into the following contest on a banner ad of all places... It looks like if you try out any of our current line of products (Windows Server 2008, Visual Studio 2008, DPM, and the like), you are entered to win some killer prizes!
All you have to do is download a trial (or run through a virtual lab) for any of the following products (that I play with just for fun ;)
Prizes include a Zune, an XBOX 360 Elite, and a Windows Home Server. How can you go wrong?
Official rules here, and sign up at the Evalu'08 site. It looks like Microsoft Employees aren't eligible to participate. Dang it!