Skullcandys are overrated....
Look into Grados, AKG or Sennheiser. I haven't owned a single pair, but I hear people get satisfying results from some of them for a price range around there.
I also know of the Retros by Panasonic which go for $40. They look very neat if you dig the older style of headphones, never tried them myself, but I have seen them everywhere at my school. Could be another overrated one, but I could be wrong.
I can definitely recommend the Sony Extra Bass XB500. It's got no insulation so your ears will collect a lot of built up heat... I own and love the XB700 and it's basically 1up of the 500's, size and quality. The "Extra Bass" wasn't what I was after, you'd have to turn it up for the "extra" to show, but I don't listen to music at such a volume so I really just got it for looks and comfort.
And about it's exterior design; the XB's definitely got a look that won't go out of style for half a century unlike Skullcandys or Ear Pollutions, or iFrogz. It's always good to think about what you'll do with that product in the long run, not just one year, but 5 or even 10 years from now... Will they go out of style? Will they still last?