To compliment, our listed choices are all good ones. I would also through in the Denon d1100. For me, the comfort of the AD700 was huge, and I have found that only the d1100 matches it in comfort (earpads don't touch your ears at all). The DT770 is also a great choice.
You've heard it before, but it's of course best if you can try out headphones before you buy.
Hope that helps!