As Sarah Palin type eyeglasses become more and more popular, rimless has been hot. What do you think about the type of rimless sunglasses? I have many full-rim sunglasses but never get a pair of rimless. So I want to try. Where do you think I can get such sunglasses?

I have never worn rimless eyeglasses before,these I saw my cousin David wore a pair of rimless eyeglass,and it looked elegant and attractive,I want to replace my eyeglass with a pair of half-rim eyeglass too.I heard that rimless eyeglasses are much lighter in weight ,but easier to be distorted.Now I `m in the dielam of whether rimless eyeglass or half-rim eyeglass to choose,who can give me a hand,thanks!