As an ex-pat Brit, it gives me great pleasure to say that we're coming home in August.
We're going to be teaching the Absolute Beginner's Guide to Drupal which we also taught at DrupalCon Chicago this spring. Both classes cover the same material as the beginner classes that happen regularly all across the United States.
DrupalCon London is taking place in Croydon in South London from August 22nd to 26th. The training takes place on the 22nd and then there will be three full days of the conference.