What you refer to as 'dubstep' is correctly called 'brostep' - just to englighten everyone. You can take a short look at this
It's basically a sub-genre of dubstep. True dubstep sounds more like UK Garage, and Bass music.
For examples of what "true" dubstep sounds like, Benji B put up an awesome showcase late last year which you can check out here
and for quick ones
Kode9 - Fat Larry Skank
SP:MC & LX One - Down
Soap Dodgers - Water Landing
(anybody recognize which film the sample's from? should be easy)
Distance - Mind Control
(recognize the sample?)
Kromestar - Thru The Blinds
DJ Madd - New Reality
Goli & Ashburner - Field of Vibrations (Benton Remix)
(sample "From Beyond")
if you want to hear more stuff like the above, listen to Youngsta here
or just get Youngsta's Rinse:14 release http://www.residentadvisor.net/review-view.aspx?id=9161
all the stuff I posted is real dubstep, not brostep everyone calls dubstep.
Real dubstep; Youngsta, Icicle, J:Kenzo, Kryptic Minds, Headhunter, Pinch, LX One, Biome, Benton, Distance, Kromestar etc
brostep; Caspa, Rusko, Datsik, Excision, Skrillex, etc.