I have a couple of headphones that have served me well over the years but are getting a bit long in tooth. What over the ear and on ear headphones do you folks use and why that particular maker/model? Price...heavy bass...accuracy...comfort for long continual usage ... noise cancellation or ... ??? What is your recommendation for listening to CD quality files for accuracy and comfort for use over 1-3 hours per listening session? Also, do you use a different mic cord than the maker of your headphone and which ones do you recommend for the iPhone?