Find popeyes coffeeshop... the little Indian dude in there will mess you up!
If you havent found anywhere to stay I highly recommend giving the guys at amsterdamescape.com a shout their apartments are fantastic and come with EVERYTHING you will need to have a great time.
If there is a TGTT roadtrip to Amsterdam Im there! Kon and I have been talking about for over a year.
Whatever you do, don't stay at 'The Globe Hotel', it was the only place we could get accomodation (we booked on a Wednesday and arrived on Friday lol) - it was a total hole lol
On the plus side, 'The Bulldog' (although it's a hostel) was quality! Our mates were staying there, and we just sat in the bar there for ages, they had everything you could ever want in there, and a Nintendo Wii (it was awesome lol).