Amsterdam is fine but if you want the best weed deals then you need to be either in Den Hague or maybe Leiden. Amsterdam has lots to offer , amongst other things you have loads of museums, including the cannabis museum
The Amsterdam Site - Netherlands Board of Tourism & Conventions (NBTC)
The official site of Amsterdam Tourism & Convention Board
Amsterdam.info » Amsterdam pictures » Coffee shops and coffeeshops
The Hash, Marihuana & Hemp Museum
Erotic Museum

I hope this has been informative.