here are our pics from AMS..
http://www.prandom.com/ams.html
and these are some of the goods:
http://www.prandom.com/ams/amsds/index.html
Your gonna have a blast! The people there like everything very small and cozy. EVERYTHING. And most everyone is very tolerant of just about anything. Just don't smoke pot in the streets. It is looked down upon, and could potentialy cause trouble with the local police. Feel free to walk around stoned out of your gourd though. It's a little weird at first, but once you realize no one cares that your high, b/c most of them are also high, everything gets mighty cozy.
I would like to recommend Kandibski's, The Dampkring and my personal favorite.. the Bush doctor. Grasshopper is very trendy, and very loud. We didn't hang there very long. We did witness someone get thrown out b/c they brought alcohol into the weed bar. (apparently illeagal in AMS.)
Most bud goes for b/w $7-10 a bag, or 5-10 a gram. Depending on where you go, some places will sell it by the gram or by the presorted bags. Bags typically have b/w 1-2 grams. (your not suppose to carry more than 5 grams on you.) Let me tell you, we had 6 avid smoker there, and we purchased a grand total of about 9 grams for 5 days. When we left, we couldn't finish it. There was about 1.5 grams left for the owners of the house boat we stayed at. They have some SERIOUS bud there. They also have very light and airy bud. You have to tell the dealer what knd of high you want, and they will give you their suggestions. Try shrooms while your there too. The Magic Mushroom Gallery is AWESOME. They have a trip for any occasion.
The best is just cruising all around downtown, and checking out all the little coffee shops. Find an alley, and you'll likely find a coffeeshop. (don't worry about crime.. there is VERY little crime in the dam, just watch for pick pockets) You'll likely also run into a person or two trying to sell you coke, or lsd. DON'T buy it. It's always fake! Once you locate a cool little coffee shop, stroll in, and walk up to the bar and ask for their "menu." This menu will have all of the choices, and prices laid out for you. Pick your poison, roll a fatty, and get to business.

And if you want to smoke what you already bought while your cruising around, just stop into the nearest spot, and smoke away. It's polite to buy something while your there. ALL coffeeshops have munchies, and drinks. This is a good way to say thanks for letting me smoke your place out. (if it isn't already.)
As for lodging, if you haven't booked a place yet, I would highly recommend renting an apartment, or house boat. Especially if you plan to smoke a lot. Most hotels don't allow smokers, and the houses are always much better furnished.
Visit the museum's. There is some cool stuff. Their museums are fairly small though compared to ours (remember the cozy thing..), and they are very "hands on" where our museums are not. The Wax Museum is freaky as shit, and the sex, and turture museums were cool too.
I can't give any advice about the red-light district, as I did not partake. I can say that you are not suppose to take photo's of the girls. And, Yes, there are a lot of very hot girls in the windows of the red light district. Most with just panties on, or some langerie, a few buck naked. All 7+ on the 10 scale.
Nobody rolls phatty "Cones" like the Dutch. You in for an awesome time. I hope to be going back soon.