We went to the Netherlands a while back and by far the best thing was renting a bike (you can do it near the train stations) and just riding around on a bike like every other Dutch person.  We rode out into the countryside a bit and it was great.  The Indonesian food was delicious.  When in Amsterdam, before you smoke pot like every other American who goes there, stop by the The Anne Frank house, touristy thing, but really cool if you like history.  I read that story and could never imagine how there could be rooms attached to a house that no one could see or even know was there.  When you go to the area, it makes complete sense.  Also touristy but great...the Keukenhof (sp could be off) Garden.  Quintessential flower Garden.  Beautiful, and the drive out there goes past all the tulip fields so go in the spring if you can.  And above all, stop by an art museum or two.  Many great works and artists are from this area.  You have to see art when you are there...Vermeer, Van Gogh, etc.  Be sure to visit places like Delft, The Hague, or Skavinagen (spelling way off - but it is a famous beach town) for a day.  Don't just go to Amesterdam.  It would be like going to New York if you want to see the US.  Safe Travels!