I'm going to London tomorrow for a week, am interested in exchanging up to 50 BTC for GBP in cash while there. Either spot price, or perhaps Mt. Gox weighted average. Will have to meet in person somewhere with WIFI, probably have a coffee or beer while the confirmations roll in. If interested, let me know about how you'd like to go about it. I'd prefer thursday or friday, the weekend will be a bit difficult for me in terms of time unless it's well before noon, and if it's after that I'm probably not going to need as much cash as I would if I can get this done this week.