Other SE1 clubbing options are Cynthia's Cyber bar, just off Tooley street where Club Flesh have a monthly fetish night (if you're into that sort of thing!). Also the Drome, aka SE1 is supposedly reopening v. soon (according to a post on urban75.com). This is also under the arches @ london bridge v. near Jaxx on jnt of Stainer Street & Weston Street. Massive venue (3000+ capacity), but in the past has held some wicked underground trance parties.
David, is it BRB, 111 Kennington Rd? It's on the corner. Has an upstairs, Pulseradio.net do some wicked parties there called Funky Beats for Music Freaks...next one's on Saturday 13th July - free to get in...if not the Tapas Bar, it's worth a look..