Joker I think you should review the monster dna; people are saying they sound like the m80 but with more bass. http://www.head-fi.org/t/626279/new-monster-dna-headphones/30 start at page 3 :) and with best buy's return policy it would be pretty easy.
Joker right now I have the skullcandy smokin bud (it's complicated ) and I'm thinking about buying the she3580. How much of an improvement should I expect; better bass quality/quantity, better mids and better treble? BTW I listen to rap/dubstep