That's a nice location to stay.
Yes most of the walks you wrote about are very doable, not too far. On day 1 you're going back and forth and back and forth the same way 4 times. Might be more logical this way:
- start with a quick look at Dam Square, not much to see there except the palace
- canal boat trip (will probably follow Herengracht and some other canals like Oude Schans, Brouwersgracht, IJ... it will be a beautiful boat ride!
- drinks at Central Library which is close to Plas, or better yet, at Double Tree Hotel's rooftop bar on the 11th floor (more expensive but better views; at the library the view is only one way and has concrete slabs blocking half the view)... although the library itself is nice, it has some funky furniture... they're very close together so you could do both
- walk to Flower Market (I suggest walking via Zeedijk, Nieuwmarkt and Kloveniersburgwal... Latei on Zeedijk is also a great little vintage place for lunch but it might be too early still)
- have lunch in the Flower Market area, for example at La Place in the shop called V&D (same restaurant as at the library, nice buffet style food) or at grand cafe De Jaren, or at cute little cafe Katoen with lots of locals, or at Bagels & Beans inside the book shop Polare (formerly Scheltema)
- for dinner you could go anywhere... the streets around Leidseplein have loads of touristy and pretty bad restaurants but also some really good ones. This may help you decide: www.iens.nl/restaurant/amsterdam/leidseplein > it shows you ratings, average menu prices, and you could translate the reviews with Google Translate if you want to read more.
If you have time left you could stroll through Vondelpark which will probably look amazing with all the colourful autumn leaves.
I had not heard of Chocolatl, and that's probably a good thing, me being an addict and all. :-) You will also love Puccini which has a few shops (one is close to Waterlooplein).
As for dinner on day 3, I suggest choosing one of the cheap Asian eateries on Zeedijk which is near RLD. Or maybe fancy burgers at gay (but straightfriendly) cocktail bar Getto, also at the border of RLD, all their burgers are named after drag queens. They also serve some other dishes. And loads of cocktails.
I'd say lunches might be between 7 and 15 euros without drinks depending on whether you choose a sandwich, soup or a warm meal.
Dinner is usually around 14-18 euros for just a main course but could be less, or more, depending on which restaurant.
Edited: 5:18 am, September 25, 2013