Reason is a favorite. Not cheap though. See the link below.
Native Instruments Maschine and Mark of the Unicorn's BPM.
FL Studio, Propellerheads Reason and Ableton Live are all good at this.
Skrillex is a DJ that makes good dubstep. dubstep is just filthy awesome electronic music
God made dubstep, on the eighth day. And it was good.
-DubstepFromGod -UKF dubstep -dubsteptunez -Dubstepmix -JESUSdiedForDubstep
Klaypex and Skillrex
2
Forest242 Daydream ...i love it! haha
rogue
Karac is a pretty good christian dubstep artist; he's done a few remixes for Lecrae and Tedashii you can find him on FB and his songs are free on Rapzilla
Dodge and Fuski: Python has a good drop. Also check out Centipede by Knife Party
There is a lot of dubstep out there. Check out Excision, Datsik, Skrillex, Bassnectar, or anything on the UKF dubstep youtube channel. Look at excision's shambhala mixes for some good songs too.