WOOOT
I picked Enschede because from what I understand, for what I'm looking for it's the raddest, baddest, most awesome city in the nation.
Vibrant atmoshpere in a well designed city with lots of young university students, a hip music scene, a touch of conservative old-world Netherlands, and people speak a ton less English there than in the west.
I might have a lot of questions for you. For starters, where should I live if I just want to hang out and learn the language? I have 3 months to go from taking an intro course (that I will do next semester) to fluency. I'm going hard. How much rent should I expect to pay? What's the cost of living if I want to drink coffee in the morning and beer in the evening in a social environment?
Second, how easy is it to get ADHD prescription in the Netherlands, or bring a bunch into the EU from outside? Some countries don't care if you already have a prescription, all stimulants are out of the question.
Which summer months will you be here? These people have student housing on campus (almost unique in the Netherlands!)
http://www.acasa.nl/nl/
These people have rooms in the neighbourhood of Enschede
http://www.sjht.nl/&lang=en_US Looking at their site and sending them an e-mail is probably a good idea.
I don't know how many people are at the university during the summer, but on the other hand, it might be easier to find a room during that period.
You can also try kamer.nl and kamernet.nl to find private rooms. Finding temporary rooms is often a bit easier than permanent ones. Your mileage may vary on these sites. You can also put an add on them saying you're looking for a room, I think.
I'm not familiar with the prices in Enschede, but in Nijmegen they are ~€300 per month. Official student housing is usually cheaper+better, but hard to get, especially if you are not registered at the local uni. If you are registered, they will usually have an international office that can help you.
People in the Netherlands make their own coffee in the morning and buy their bread and cheese at the supermarket and make sandwiches at home, which they also bring to work/school for lunch. We are cheap that way. A glass of beer (0.3l) is probably like €2, you might get one for ~€1 in a student bar. A bottle of beer in the supermarket is $0.50
Not much experience with prescription drugs, but I think if you bring a prescription from an American doctor and show it to a Dutch doctor, he will probably just give you a new recipe so you can get the stuff at the local pharmacy. If you want to be sure, you might want to call a doctor before you leave the US. I wouldn't advice bringing *a lot* of drugs with you in an air plane, they usually don't like that and you will have some explaining to do.
Make sure you figure out what to do with your health insurance! Especially if you want to work in the Netherlands (though I suppose you need a special visa for that as well, as a non-EU person?)
Hope I covered most of it, if not, ask again here or at #fiftychat if I'm there.