Electronica - suggestions?

I made a grab for classes this semester to get some stuff knocked off my degree plan, but it means I need to concentrate again (wth, don't they know school is for ignoring?). I like a lot of different music, but I find that I do my best focusing if I've got some sort of electronic music blaring in the room. Some of the mainstays have been Robert Miles, The Crystal Method, ATB, Antiloop, Moby, Daft Punk, and a whole lot of video game music variations.

Looking for anything interesting, preferably stuff where I won't be distracted by figuring out the lyrics. Anyone have any favorite artists or specific songs?