new eyeglasses

I think I need a new pair of eyeglasses already. I have been using my glasses for over a year now. It has a lot of scratches and is already a little bent. But it is really quite costly. Good frames go from Php 3000 and up and that still doesn't include the lenses. L

My sister-in-law introduced me to the idea of ordering eyeglasses or just the frame online. She even volunteered to ship it to me here in the Philippines. While surfing the internet, I came across this article on New York Times about saving on the cost of eyeglasses. There were several tips on how to have corrective lenses without costing a fortune. After going to different websites for eyeglasses, I came across Zenni Optical which I liked because of their low cost and up to date frame models. There were a lot of frame designs to choose from. There were also description on each type including the measurements and color options.  

I am having a hard time choosing a frame because there are a lot of options. For now, I am considering three designs. My choices are: small plastic frame because of my small face, or a titanium frame because of the weight, or a half-rimmed design so that I can sport a different look. What do you think would best suit me?