Apple’s Logic is a step above Garageband . Its designed for more serious musicians with more time to dedicate to learning software . Apple, being the innovators they are, actually made it easy for us to integrate our work done in Garageband right into Logic Pro, to make your upgrade to the more advanced setup seamless.
Here’s a great 5-part video series by YouTube user DeponeDub teaching us how to create dubstep music in Logic Pro.
Also, here’s one by mpigsley77 with some advanced dubstep tips in Logic Pro.
Try out Apple Logic Studio!
Make Your Own Dubstep series