The All Your Base Conference is a database conference for web developers. It's a one day affordable, single track conference exploring noSQL, RDMS and client-side database solutions. There will be a keynote from the creator of MySQL Monty Widenius and talks from developers from Github, Heroku, Adobe, Mozilla, 10Gen, Basho and Twitter.

The full price tickets are £125 but you can play a game on their site for a £10 discount (only before October 1st though, it expires then). You can get more information about this event from the conference's main website.