I offered to answer any questions about the rld by pm, but might wanna do it here anyway.
Here goes:
Basically you pay 50 euro for 20 min/ two positions and blowjob. But in the main RLD (Wallen) girls might offer you only one position or just a blowjob and charge for extra positions, or things like top off, touching breasts, pussy etc. And right after ten minutes they might start bitching about the time. They are exceptions however.
Women in the area around Singel/ Oude Nieuwstraat/ Spuistraat, (5 min walk from Central station) are not that rigid and that strict on time either. These women are mostly Carribean/south american (Columbia, Cuba, Venezuela, Dom. rep etc.) and they often seem to enjoy the sex. Paying 50 to them will get you two positions (or more), long blowjob, touching every where you like and even more, If you want a blowjob without a rubber
You Might have to pay a lot extra if a hooker even offers this.
You'll find mature ebony ladies behind the church at 'Oudekerksplein' (indeed next to an Irish pub). They are often older and cheaper (30/35 euro), but mostly not that attractive and often have a very bored attitude. If you're really in to these type of woman,
You Might wanna try the red light district at Doubletstraat in The Hague (there are two in this city). It's only a ten minute walk form railway station Den Haag HS, which can be reached from Amsterdam Central station in 45 minutes.
If you want caucasian women, you're bound to the Wallen. Alternative can be the small city of Alkmaar, This is an eastern european eldorado. The girls are young and cheaper (35 euro). It can be reached fast by feet from it's main railway station, which takes about 40 minutes by train from Amsterdam. Look for 'Achterdam' in the city center. Beautiful pittoresque city. Its cheese market is world famous and the main tourist attraction.
Basic rules: you pay at forehand. Be clean and well groomed, otherwise they might refuse you or let you wash first. So being clean saves you time. Make sure you have an agreement on what you want before you step in. Once inside you are too late. From then on you can only agree on more service and thus higher costs, not the other way around.
Be gentle and don't argue when she does not fully performs up to what you agreed on. Believe me: you will never win this battle. She might open the curtains when you're fully naked, or just push one of the buttons that are everywhere in the room and do alarm security. They might easily get physical (and not in the way you want it), police always look the other way.
Ignore the young blacks and morrocon kids when they are trying to make conversation. Since red light districts are heavily patrolled by police and security guards and fully monitored by camera's these are often very safe parts despite what
You Might have heard.
Some other touristic notes:
You
won't find any works by Leonardoo DiVinci in Amsterdam, lots on Van Gogh (Van Gogh museum) and other famous Dutch painters (Vermeer, Rembrandt etc.). Just hop on tram 5 to Museumplein.
You can rent bikes, but Amsterdammers will hate you (tourists on bikes are too slow and too dangerous).
Bike lanes are the sole domain of bikers and they will enforce this by all means so avoid these when you're walking!
Restaurants in the nightlife districts of Rembrandtplein, Leidseplein and Wallen (red light district) area are crap. In the southern part, Jordaan area or on the canals you will find lots of great places.
For most taxi drivers navigation systems are a necessity (just too stupid) and ripping tourists off is a second nature.
Vondelpark is indeed the most famous park, but Westerpark (just as big) is more trendy nowadays and offer lots of concerts and house parties in the summer (take bus 18 or 22 from central station). Other great area is the NSDM-area in the northern part (reachable by ferry right behind central station). This area hosts all kinds of spectacular events during the sumertime.
If you wanna try picking up beautiful often surgically improved

ladies without paying
You Might wanna visit 'Strand Zuid' at 'RAI' (metro 51 or tram 4).
Enjoy the greatest city in the world!