Going to London !

Ok, I decided ... I got a ticket for the Carson Workshop Summit in London on the 8th of February. It can be of an immense value for my research and it isn't that often this kind of top speakers gather in Europe. I probably going to leave the day itself early in the morning but I'll stay one night in London. I know a cool, cheap hostel to stay. If I'm in London I can better enjoy the city for one night. I checked a few transport options :
  • FlySN : It's some kind of cheap deal and it will cost me 132 euro.
  • Eurostar: If you book 21 days in front, it will cost me around 80 euro, need to check this, not sure.
    • Well I like flying very much and the train is 4 hours travel so I don't know what to do. Are there more options? I checked out ryanair but that's not really an option because Ryan only flies from Eindhoven to London Stanford. So it will become to complicated for me :). From Heathrow (airport) as well as Waterloo (station) you can take the tube to the destination of the summit. So that'll be pretty cheap. Anyone else from Belgium going? Maybe we can arrange something... tell me what are your plans?