You could also take a look at the excellent dubstep articles at macProVideo:

http://www.macprovideo.com/hub/tag/dubstep

Take a listen to my Ableton - Beat the Clock remix track.

http://contest.ableton.com/tracks/973

It was fun having a strict time constraint to complete a remix. The track incorporates some dubstep and a ting of moombahton.

Take a listen and if you like, please vote for the track.

Thanks.