i was in amsterdam last summer and am there every summer not long now and i stay in the sports bar at the top of the red light district it has its own site so try look it up very cheap prob just what your looking for and right in the midde of everything walk out your hotel and coffie shops and whores all around you id also go by plane mutch quicker in the dam in 45 mins either on easy jet from stanstead or edingbrough look on there site or klm from manchester or newcastle and my fav coffie shop is the blue bird some people might think its to expencive but the choice of high quality buds and resin is amazing and the chilling couch is cool too but am sure you will find your own fav as there is plenty enjoy your trip man and happy smoking
ps yeh look out for the people on the streets just say no and walk away...