The next QCon is scheduled for March 2013.
Tutorials are scheduled for 4th and 5th March, Conference for 6th, 7th and 8th March.
The speakers haven’t been announced yet, but if you register before 9th November you can get the early bird ticket price for £1,044… which seems pretty steep to me but I guess in the main its companies who buy the tickets for their employees, or really keen techies who can afford it. If you are neither but want to go you can actually volunteer to help and I think they’ll let you attend some days for free. Either that or there’s normally a free event or too on the last day.
Here is the LINK to the registration page.