I have been getting mine from Big 5 sporting goods for the last 10yrs since there is a store in town. I get Bolle or Body Glove glasses when they are on sale for 30.00 to 40.00. They make some nice wrap around designs for fishermen and different colored polarized lenses to suit your taste.
I have a nice pair of grey Bolle and a nice pair of amber Body Gloves. The BGs are a little larger and work better with my flip-up bifocals.