I have some Sennheiser HD202's which are really nice in terms of sound quality, so that Zalman clip on would be nice, but at the same time I find those headphones get uncomfortable after a while so I usually use speakers.
I was looking at something like the Logitech G330's as they go behind the head and that will be more comfortable.
he thought: this thread is now mine! i shall ask wtf i want and when i want :P