Ooh, cool! SOAS is in a great location (I used to study and UCL and use Senate House library) and there's lots of computers at the main site even if you don't get fixed up quickly. Also, Caffe Nero on the Tottenham Court Road will probably have free WiFi :)

I'm not sure when I'm next in London, but will drop you a line if I am, and if you fancy a guided tour of Oxford, I'm always here and am about to start a new leave year, so have lots of days holiday.

Most of all, enjoy!