Watch the Drop D Bullet online guitar lesson by Angus Clark from Hard Rock Survival Guide: Rhythm
"Bullet for my Valentine" do a nice job of drawing influence from classic thrash like early Metallica, but applying it to a drop D tuning. Watch out for fast sixteenth mutes on the bottom string, and syncopated rhythms working against that open string pedal. This example is made particularly confusing due to the drums playing the "oom-pa" drum beat, where the snare is on the 2 and 4 but the tempo is so fast that it sounds like it's on the off-beats. It makes it really easy to get turned around. A lot of the drummers do you the courtesy of keeping the 4 solid on a splashy set of hi-hats or on the ride, so be sure and listen for it. Winding up backwards in this setting is not good.