There's actually quite a few different aspects to drum and bass, you can't really call it jungle nowadays. Breakcore is probably the closest sound to jungle, check out Planet Mu for the grimy stuff. There's quite a lot of deep intelligent drum and bass being made, if you're into that sort of thing have a listen to Deep Blue, Electrosoul Sound System, Breakage, Seba & Paradox, Illogic & Raf... Good stuff for a shuffle on the dancefloor. ;)