Since you're into the electronic genre of music and DnB especially (I love DnB, we need more of it in the fandom!), my advice, from my personal preferences and style, would be to be original. Stay away from sample packs as much as you can and first, learn to make as many of the sounds and percussion in your songs as you can. Be patient, by creating everything from scratch, you will learn a ton and will be able to get the sounds you want on basically any synth, and you'll be able to create those exotic sounds that you can never get in sample packs. Of course I have no idea of the style of music you're into, I'm speaking from a dark Dnb/ crossbreed standpoint. If you do end up creating Dnb, for instance, try not to do the "kick snare kicksnare" pattern that is so overused, be original!