I really need to get going on the hacking handbook I have. Im looking after a fair amount of computers now so getting more security knowledge can only help.
On the client side I could perform XSRF, XSS and SQL Injection... Just due to knowing how to secure against them. I'm more interested how you keep third parties from accessing boxes, though our firewall stuff does a lot of that. I'm intrigued about things like session hijacking, though I wrote something to protect from that a while ago, and other less conventional things.
Plus more I learn this stuff, ore avenues open into network security.
If your not doing anything that date and can fly into dublin/shannon/waterford the day before your more than welcome we have plenty of room, food and beer!