I currently use a pair of Cloud 2's and like them, however I want to upgrade to a new pair.
I don't have an Amp or DAC currently, but my motherboard has pretty decent audio (ASUS Maximus Ranger VII).
I think I would prefer closed back, but am open to other suggestions. I like a good amount of bass and listen to indie/pop.
With the full mic and gamer setup thingies? I just got a teaser email yesterday that Steelseries is about to announce a new line of "audiophile" gamer headphones on 13 March, I think. Not sure what price range those will be in, but I think most gamer brands tries to aim for the 150-ish quid mark these days?