This looks like a good deal from Midway USA on the matte carbon/black iridium Oakley Valve for $48.99 and in polished black with black iridium for $54.99. They also have two styles of the Turbine in dark grey/ice iridium and dark grey ink/dark grey lens for $54.99 and $63.99.
Oakley Sunglasses - MidwayUSA
Oakley Sunglasses - MidwayUSA