This isn't really electronica, well it sort of is...
Mindless Self Indulgence is a band i started listening to recently, and they are more addictive than any other band. Deftones used to be my favorite band, but now I am not sure. They are sort of electronic, but with sort of rock, a little rap, and crazy vocals.
LTJ Bukem has some nice stuff.
The Dust Brothers, Liam Howlett live stuff is good. Mostly i don't like the electronica side of music though. I call it all techno anyway, but usually I think of dance when i hear electronica and most dance i don't like.