Well i would suggest a large steroe headset. They can be found by all sorts of companies. Although I think the choice and desicion is yours to make on what is the most comfortable. I use KOSS Titaniums, they are not large but have relativley good Bass play-back and are comfortable enough for me.
hands down... Plantronics DSP 500's. I have been in the multimedia industry for well over 10 years. They are the most comfortable, have the best sound.
i have two sets...one for the office and one at home...they are amazing.