Market Place, W1
More of a bar than a club, and run by the same people who do Cargo (which gives you an idea of the kind of place this is) The Market Place is all Swedish style wood interiors, and bench seating. Still, the basement is pretty good and there's some interesting music played here from time to time.

All in all a welcome addition to the bar "scene" of Oxford St, if only because most of the others are so crap.

11 Market Place, off Oxford St, W1
020 7079 2020
nearest tube: Oxford Circus