Not sure if you're into the retro '50's look, but take a browse at: www.shuron.com
Specifically: RONSIR WOOD GRAIN COLLECTION

You can buy the frames separately and have an optician fit you with the proper Rx. Most shops frown on this practice as that is how they make their profit. Hugh mark ups on designer frames.

The Shuron people are great to talk to over the phone for product questions. They are a full service lab and can fill your Rx.

Standard disclaimers apply. Not affiliated with Shuron.

If you don't mind pretending you spent more than you did get some for $10 or so at http://www.zennioptical.com/ .

zennioptical.com - very inexpensive, so you can buy multiple pairs if you feel like it. warbyparker.com - Not quite as cheap as Zenni, but still pretty cheap, and you can order 5 pairs of frames to try on at home before you decide.

I am pleased with the service/product from http://www.framesemporium.com I have made only one order from this source.

First, watch this. I buy glasses as infrequently as possible, myself, but then again I'm kind of anti-fashion. I do buy them from a local optical shop.

Really!! Then I suggest you to go for contact lens heaven where you will find a wide variety of sunglasses of different brand and they are affordable too, in fact much less than what your budget is. You will get the best deals and offers as well.

Most Costcos have an optical department. I just got a pair of glasses with flexible titanium frames, ultrathin high-index plastic lenses with Transitions (they darken in sunlight) and an anti-reflective coating for $260, including the eye exam and sales tax. My last pair of glasses from a big chain store (Eyemasters) was $360 for the same thing without the coatings!