Hallo,
I'm living in Kosice, too. Unfortunetely, I'm not in LEGO trains, my interest is mostly in Technic, and for last couple of years also in our LUG project of MicroCity. As papluh mentioned before, most of our LUG members are in western part of Slovakia, here in Kosice I don't know about anyone else, but me. Which of course doesn't mean, that there isn't someone else, it only means, that there aren't more active members in this forum from our city.