Network your ass off after hours :-) That is what I've done (similar situation).
This is one of the many reasons I created 3cosystem [1], a simple mobile website that lists most of the tech and startup events in over 60 cities worldwide.
I was new to Stockholm and wanted to plug-in to the startup ecosystem as quickly as possible. Turned out there were a lot of others that had the same issue.
Have a look -- there are a ton of events.