I was in London a few years back:
Avoid the clubs near the center of london (leicester sq, picadilly etc.). You will dump alot of money there with little to show for it. The exception to this may be the spearmint rhino (never tried but the local people I was working with said it was cool)
The strip clubs in london are pretty lame, low mileage, establishments.
I don't know if these places are still there (last visit 2003) so take this with a grain of salt..
These two place were literally within a block of each other in the area near the Old Street Tube Station.
1- Browns: This place is mainstream in that locals would hang out here. Not too many tourists. It was pretty crowded but manangable. The dancers were pretty hot. The deal was that before each girl went on the main stage she would walk through the crowd collecting tips in a jug. 1 pound ($2) was almost required for each dancer. She would then dance a few songs. When they were not dancing or collecting tips you could get an air dance from them in the back area. Had one or two...nothing to write about.
2- Spread Eagle: This joint was very seedy, but the mileage was a bit better with more contact. Reminded me of the slimewood, uhhh i mean candlewood in queens. I spent alot of time with this brazillian chick and almost got take out with her.
The internet has plenty of ads for escort services which I've heard were pretty good but expensive. (no experience here)
Whatever adult services you choose in London, one things for sure, it will be expensive.
//pardon my spelling/grammer
