I'm just going for fun. I've always wanted to go, so I'm very excited and I've already planned which things I want to see. I'll be there for about 5 days probably sometime between the beginning to middle of October. I haven't decided on a date yet. I'm probably going alone so my main concern right now is just how lost I'm going to get. I keep looking at the maps of the Underground and of the city and they make my head spin (but in a good way). :)