thanks.  of the three that you suggested i am leaning towards the k550s.  would you recomend a different one over them? and why

and i do have the akg k702 headphones at home as well. should i just ship them out to me? the only concern i have with those is that i dont want to annoy my roommate with all the leaked noise from those

thanks, i have one more question/concern that i forgot to post earlier.  do any of these leak sound a ton? i would prefer some headphones that dont leak very much and also dont allow for much external noise as well

oh, should have mentioned.  i listen to pretty much anything.  electro, rap, country, rock.  im not as focused on any one part or music (like bass and rap) so i guess im looking for a more rounded headphone

so right now im a freshman in college and have a budget of up to 350 or 400.  i want some high quality headphones and from what little research i have done i can tell that beats and qc3s are a rip off and that i should get some sennheisers or beyers.   so right now i have selected a few...