Yorick - I later found out where that bar was, the Peppermint Lounge, it's on Victoria Street, across from the Holiday Inn in Kings Cross. We were so frigging way off when the three of us were trying to find it, mate! It's about 2 mins walk from your studio.
Awesome place - very James Bond in the decor and lighting inside. St Germain across the airwaves - very cool.
------------------