Hello and welcome to the forum!
There are not so many swedish routes yet, but I like the Jonkopingsbanan very much. It is very short, but very nice. You find it here:
http://www.e-buzz.se/forum/showthread.php?t=34794
And I also like the Trollhattan route, but it is in beta for now. You find it and Bergensbanen (Norway) here:
http://www.e-buzz.se/forum/showthread.php?t=35449
A route I think everybody is waiting for is Stangadalsbanan. You can see pictures here:
http://www.e-buzz.se/forum/showthread.php?t=35374
All the routes above, is real swedish routes.