"Ticks & Leeches" by Tool has a hard drum part, in some ways. The footwork in certain areas is the only real tough part for me, though the time signature isn't as crazy as some Tool songs are.

As far as speed goes, there are some Dimmu Borgir and some Strapping Young Lad songs that are completely ridiculous, and I don't know how I'll ever play them. I'm gonna try, though.

*shrug* I can play most of what I listen to, which I suppose is cool. I don't listen to much jazz, though, and I know I can't play a lot of that stuff.