Dude, the Netherlands is not all like Amsterdam, and if you sit on busy street corners toking, you will get hauled in by the police - its de-criminalised, but that means you smoke in the designated places, either at home or a coffee shop.
And to be honest, having worked in and around the Netherlands for long periods of time, are you really sure?
I mean the Dutch are some of the nicest people EVER, but the place is a bit dull (I know its a joke about it being a flat place, but untill you're there, you cannot comprehend it) and there's only so many combinations of cheese, bread and ham that you can put up with after a while (can anyone tell me the pinacle of Dutch cuisine??!!? ), and outside of the Dam, you may find the rest of Holland, although beautiful and very friendly, quite conservative.

Just be wary. And to all the Dutch readers, Schipol is the best airport ever I think!