Hi Adrian!
Welcome to the forum.
Some basic things for your visit to Zagreb:
Railway model club "Zagreb" or as we call it KŽMZ (
http://www.kzmz.hr ) is in Ilica street one tram station from the main square (Trg bana Jelačića), open every Tuesday from 19 until 21 or 22.h for visitors and members. Almost evers Saturday there is a "working afternoon" from approx 16:00 until 19:00 for members (you may try to visit if someone is working there)You will be more than welcomed to visit us, some members are fluent in English and German.
BTW, if you stay long enough, maybe you can visit club's
exhibition and flea-market that will be held on 10.05.2008 from 10:00 till 18:00 not too far away from the main train station (10-15 minutes walk)
How to get there:
http://www.kzmz.hr/files/kako_do_susreta.pdf
Shop is only one at the moment, with not so many things on the shelves, but some JŽ and HŽ or SŽ models of Gbs wagons and one couchette coach may be found (mainly Roco, Heris etc.)
See some offering here:
http://www.hm-sport.net/index.php?cPath=26
Address is: Zagrebačka 137 (a 15-20 minutes walk from the Črnomerec tramway and bus terminal, 10 minutes by bus) It is possible to reach the shop with the commuter train, station is "Kustošija" 10 minute walk to the shop.
Map of the location:
http://www.hm-sport.net/info/kako%20do% ... nas%20.jpg
Regarding
trainspotting, the best locations are the Main train station (Glavni kolodvor) and west train station (Zapadni kolodvor, 10-15min by tram from main station) and all the places along the main corridor tracks. Although takeing pictures is forbidden, it can be photographed without mayor problems.
On the stations one can find a variety of DMU and EMU, diesel and electric locos and different rolling stock.
For more informations regarding real stuff see excellent Croatian forum
http://www.zeljeznice.net/forum, there is also a sub-forum for foreign users (English, German, Franch and possibly Italian language spoken)
Hope this helps
Have a nice stay in Zagreb and lots of fun,
cheers mate!