My favs are Gucci, Chanel and Fendi... there's way too many styles to recommend but I like the lens as dark as possible. I'm not really into the lighter colors... but I have my moments of impulse
I assume you're a male? The Burberry ones are pretty nice... but they seem kind of cheap, makes you wonder. I buy a lot of my sunglasses on eBay too, I go for the power sellers in the US.
Also, try putting the color you want in your search or try
www.ebayexpress.com too