For the record....I just found an optical shop locally that carried those Wiley-X sunglasses/goggles. They are AWESOME!!
They are super light and the nose piece area is super light and flexible so that even in "sunglasses" form I felt no pressure back there by the ears. Then the ability to pop off the arms and make them into goggles was just icing on the cake.
I've already had them order me a pair (didn't have the right lens combo at store).
If anybody is interested in them, use the dealer locator from the Wiley-X website and try a pair out locally.
http://www.wiley-x.com/