I'm currently at Wheaton HIgh School recieving the age old "I want to make a game, but how?" question.

 1.  Get it installed: http://creators.xna.com/Education/newtoxna.aspx

 2.  Make Pong in 5 Minutes: http://blogs.msdn.com/devschool/archive/2008/02/03/pong-in-5-minutes.aspx

 3. Get Rolling wtih Dan's 3D Game Development Tutorial: http://blogs.msdn.com/dawate/archive/2008/02/05/building-a-3d-game-in-xna-from-scratch-free-video-tutorial-series-now-available.aspx

 That's it!  Any questions you know where to find me.