As an aside do any ex or current students know the best way to the ULAS HQ from UH?
Scoot down to Hatfield station, jump on a train to Kings Cross (or Finsbury Park to avoid the crowds). Onto the Picadilly line and jump off at either Knightsbridge (if you're early, pretend you're posh and wander around Harrod's for a bit) or carry on to South Kensington (don't have to worry about all the pedestrians in your way going down Brompton Road - not always a bad thing - I bumped into Kat Deeley once...
). Either way can take anything between 45 minutes and and hour and a half...