Both youtube links don't work, also, nice cover of the wub wub bits on guitar.
But for dubstep, check out Coyote Kisses, they make good stuff.
I don't think my link to youtube works though, so just click here.
Nah bro if you like that real dubsteo try Datsik or Excision.. And i have to agree with Hotshot,, Skrillex sucks