the_red_devil has said everything there is to say about accommodation and if i were you, i'd highlight that with a marker (you'd get this joke when you finally did choose Debrecen).
however, if finances are an issue for you, then i'd highly recommend considering the nice option given by the great chapelier.
romania is cheaper and imho you'll get the same EU-tagged degree like anyone else. by and large, all east european medical schools share the same problems and/or advantages.
lastly, this is just an advice from me. 1st year might be too early to join a research group at the university, and i dare say joining the neurosurgery research team might be a little bit ambitious (even though i aknowledge that you may have a previous degree in that field) but i'm not saying it can't be done either (in fact there's a girl in our year who has been w/ the biophysics department since our 1st year). i just feel that you should concentrate on having a solid academic footing in the 1st 2 years w/ little distractions and maybe by ending 2nd year or beginning 3rd year you can join the research team of your choice. and yes, you can go to the professor directly and ask him/her to join their research group. they'll be overwhelmed (and maybe shocked, but in a positive way)
good luck in your endeavours.
UD-MHSC, Debrecen, Magyarország.
Pls peruse the forum before sending me PMs. All answers to your questions are there!