How to win a ticket to TechEd?
Here is the route - write an addin or VS Package and participate in the Microsoft Visual Studio Extensibility Contest. If your add-in or VSPackage wins the first prize, you have the ticket to TechEd Spain with travel and accomodation.
More information on the Visual Studio Extensibility Portal. Remember the contest ends - July 31st 2006. The contest rules are here.