Serengeti Hurikanu
Just picked up a pair of Serengeti "Hurikanu" via peepers.com for $78, with 2-day FedEx came to $88. Got the black matte frame and drivers sienna brown lenses. Tried them on at Sunglass Hut first to check for fit, and I think the frame should fit well under any headset. If it doesn't work, they have a 7-day return/30 day exchange policy. Serengeti has a multitude of lens and frame combinations so I'd suggest trying stuff on before purchasing. Also, serengetieyewear.com is a good place to figure out all the lens choices.
The "drivers' gradient" lens looked interesting but unfortunately its not available in any frame style that doesnt scream "im a pilot", aka the Aviator, or in a frame that would fit well under a headset.
hope this helps