I'm a DC hound going to London for a long weekend in a month. I was wondering what restaurants have the most creative/innovative cuisine these days? Of course, without sacrificing quality. Price is not an issue. I don't think there's any way I'm going to be able to get a reservation at Fat Duck at this point, so I'm looking for somewhere else that does delicious food using either interesting flavor combinations, or different techniques, or unusual ingredients.
The only other requirement is that it has to be fairly accessible by train/underground or taxi (without being a $50 taxi ride).
Thanks so much!