If you want dope shades cheap, check out here:
http://www.sierratradingpost.com/sea...criptions=True
The only problem is that buying sunglasses online is something of a crap shoot. I like to be able to try them on. If you know frames that you like, though, you can get some hella deals at STP (on just about anything, not just sunnies).
I like Smith Optics, Costa Del Mar, and Spy, personally.