Rodenstock rimless glasses, including lenses - $46.00 (RRP $385 for frames alone)
The lenses include Anti-Reflective, Scratch Resistant and UV protective coatings. Every order also comes with a cleaning cloth, custom case and fitting/tightening tool, absolutely free.
Better yet - I used the coupon code "thankyou" and got a 10% discount. (There is another coupon "tellafriend" for 20% off, but it didn't work for me)
They actually have quite a decent selection of "designer" frames available, and they have an option of uploading a photo of your head so you can "virtually" try on the glasses. Not as good as trying them on in a shop, but a nice feature compared to other online sites. I guess if you could be bothered, you could identify some frames you like then go to an optometrist and try to find the same (or similar) and try it on. Might be hard to do that, though, as the range of frames is huge and most shops can only have a small selection available.