There are probably enough infosec conferences for every day of the year now. All (good) conferences post their slides now, so based on the archives of the past year's conferences, here are my favorites (most recent to oldest, with links going to the slide downloads):
- Syscan April 22-26, 2013; Singapore
- Infiltrate April 11-12, 2013; Miami, Florida, USA
- HackInTheBox Amsterdam April 10-11, 2013; Amsterdam, Netherlands
- Blackhat Europe March 12-15, 2013; Amsterdam, Netherlands
- CanSecWest March 6-8, 2013; Vancouver, Canada
- Schmoocon February 15-17, 2013; Washington, DC, USA
- ZeroNights November 19-20, 2012; Moscow, Russia
- HackInTheBox Malasia October 8-11, 2012; Kuala Lumpur, Malasia
- BlackHat US July 25-26, 2012; Las Vegas, Nevada, USA