Haha I am too old for the latest hits, 80s/90s glam rock is my thing...there is a club called Decadence & Disorder on Saturday nights in central London...in the Decadence room they play mostly rock:
http://profile.myspace.com/index.cfm?fuseaction=user.viewprofile&friendid=17535533
and there is a monthly night at the Electric Ballroom in Camden called Inferno, the main floor is mostly goth/industrial, but they have a rock room upstairs...Spunky Lobster's set is usually the best...
http://www.electric-ballroom.co.uk/inferno/
Hmmm just re-read the thread and you're here Mon to Fri...I'm not sure what's on on week nights...there used to be a couple of decent nights on Thursdays but i don't think there still are *sigh*. There are a couple of rock pubs that might be a good place to start...they might know of stuff. There's the Intrepid Fox, which is just behind Centre Point, on Charing Cross Rd...and the Hobgoblin, which used to be the Devonshire Arms, in Camden...not been in there since it changed hands but it's supposed to be more mainstream rock (it used to be a goth stronghold...) I'll ask a couple of my DJ friends and let you know if they can suggest anything. But I'll leave in the info about the weekend clubs anyway, just in case you plan on visiting over a weekend sometime...sorry not to be more helpful!!