The technique mentioned by Lord Worm is just the one-handed roll used in a gravity blast. The kicks would be doing 16ths, the snare would be doing 16ths, and the hihats would be 8ths. Examples of the gravity blast can be found in most of Origin's music(John Longstreth is an expert gravity-blaster) and Kataklysm(for example, the song Ambassador of Pain from their new album). The one handed-roll uses the rim of the sanre drum as a type of fulcrum point. The drummer hits the snare head and the rim at the exact same time(it has to be really really dead on, or else you'll hear the rim being hit), then drops his arm, as if he/she were shaking someone's hand, all the while keeping the stick resting on the rim(the stick's angle on the snare is changing, but it is constantly touching the rim). Then the drummer moves his arm up again, so the stick hits the head again(while still touching the rim), and finally the stick moves in the same motion as the arm, up off the rim, only to repeat the process all over again.
Sorry if this description didn't make much sense, I'm really tired and it's hard to explain drum techniques without showing someone in person. If any of you guys are really interested in the one-handed roll, PM me and I can answer any questions, as well as maybe be able to send a video of a one-hand roll expert explaining and showing the technique.
