First two tracks today are drum & bass whereas the last is a "dubstep". Don't really know what to even think of that genre anymore, half the good dubstep songs don't even have that dub touch. Oh well, I'm perfectly fine with DnB, take a listen to these and download them if they're pleasing to you. Also, beware that the last song has some rapping, or hip-hop styled vocals.
Sigma - Stronger
Star Guitar (Brookes Brothers Remix)
On My Own (Drumsound & Bassline Smith Remix)