Well, some brilliant artists (imo) are Ed Rush & Optical (songs: Glass Eye, Compound), Photek (songs: Seven Samurai, The Hidden Camera), J Majik, and a whole bunch. A friend of mine is really into it, and his favorites are Bad Company (not the rock band), Ram Trilogy, Dillinja, Technical Itch, Pendulum, etc. Try some of these, I'm sure you'll like them.
And of course there's the obvious ones like Roni Size and Goldie, but I'm not really into them.
Oh yeah, Aphex Twin has some drum n bass stuff too. It's great. Try 'Monkey Drummer'. The video for it is brilliant.