Hello Jože and welcome to the (Unix) "daemons"!
To follow the threads' suit:
I've been using FreeBSD7.x / 8.x as my primary desktop OS for a couple of years.I also use NetBSD sometimes. Currently I switched back to Slackware Linux and Ubuntu as primary OSes (Linux was my "first love" and my introduction to the Unix-based OS world). But I still like *BSD a lot and I always keep an eye on the BSD community. And I still play around with FreeBSD 8.x / 9.x virtual machines.
And to follow another suit, that of rocket357: I'm an AIX / Linux admin by profession and a BSD enthusiast user by choice.