Need Advice. Headlight Fogged - Replace it and from Where?

Hello Corolla enthusiasts, like myself! :D

First off, let me start by saying that I'm the happy owner of a stunning red 09 Corolla XRS. This car's given me nothing but joy over the past two years!

Long story short, my driver side headlight appears opaque and foggy. I'd like to restore it's beauty and so I'm wondering, is there a way to solve this issue other than by replacing the headlight? Or is replacing it my only option? If in fact replacing it is my only option, then I'd like some assistance in choosing between vendors. I found these two sites that I liked, but am wondering which has the faster shipping time, as I'd like to resolve this issue ASAP!

??? Thanks in advance.