Microsoft is hosting launch parties all over the US with a great door prize: free Windows 7 Ultimate. If you are an IT professional with legit company contact information, you can sign up to attend.http://www.microsoft.com/business/thenewefficiency/
Here's where you can check to see if they will be hosting an event in your home town. It also has all the registration/event information.
This is another great thing they are doing for Windows 7. My opinion of Microsoft has really improved over the past year!