Sounds awesome. I'd love to go to London for a full week and just visit everywhere I want to visit. Whenever I'm down, it's with work, so I have very limited time to myself (usually early morning and evening/night only). I did manage to get to the Millennium Dome when that was open in 99 though - not as good as the hype mind. I've also been on the London Eye a couple of times, which is just amazing if you like views! I think if I did end up going down for a week, I'd just get one of the four in one tickets that get you into Madame Tussauds, London Eye, Sea Life, and the London Dungeon. I think they're about £55.