EuroBSDcon 2011 - 6 - 9 October 2011 Maarssen - NL
EuroBSDcon is the European technical conference for people working on and with 4.4BSD based operating systems and related projects. EuroBSDcon 2011 is the 10th EuroBSDcon and will take place in (in the center of) The Netherlands 6 - 9 October 2011 at Meeting Plaza, Maarssen, The Netherlands.
For an overview of the talks see http://2011.eurobsdcon.org/talks.html
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump