There's also Genndy Tartakovsky with Samurai Jack and Dexters Laboratory, although I realize they're in early 2000 - they're both excellent. Sad that his first foray into feature films is Hotel Transylvania.
http://www.reddit.com/r/IAmA/comments/10l1an/i_am_genndy_tar...
I also enjoyed the political stuff & (oddly) the robot dating the cheerleader.