Hey thanks a lot for posting my track in the OP!! (I'm rafiki :)

Here is one of my mix, i believe its mostly halfstep :)

It's definitely hard to know what exactly halfstep is. same bpm as dnb, just slower and deeper.

Rafi:ki - mix 001 - Halfstep / Drum&Bass
https://soundcloud.com/rafi-ki/rafi-ki ...

Here you go

http://www.mediafire.com/?veajxpk612iqyxn