In the Concierge Collection, the London Royal Garden Hotel ranges from 52 to 74 points PER NIGHT.
I THINK there is an II choice for London. If so, 1 bdrms range from 124 to 160 per week, and 2 bdrms range from 207 to 270 per week. I'm guessing that London would be a difficult exchange, but I am not sure.
Speaking of exchange...U.S. exchange rates aren't very good right now, so even with the hotel covered, you'll still be out a lot for everything else.