I would use a standard audio connection for full capability of your soundcard.
Since I wear glasses, studio-type ear cups start to suck after a while, so I use behind-the-head logitechs. These are super-cheap...try them out to see if you like that style: http://www.amazon.com/Logitech-981-000074-PC-Headset-880/dp/B000W8W8PA/ref=sr_1_16?s=electronics&ie=UTF8&qid=1294424845&sr=1-16
I have pair of these and some nicer, more expensive ones, and these are REALLY good for the price.
Edit: I stand corrected on the USB vs. jack output per the other comments in this thread.