A young web-radio right here! London’s geekiest radio station that is!
only a couple of months old and growing 
DnB/Dubstep/Hip-Hop/Techno/Ambient/Industrial/Grime and everything in between
you can listen on:
http://www.coconutrobot.co.uk
also, recordings of my sunday show can be streamed on mixcloud:
enjoy!
Jef