How do I optimize my Ads?

Hi again everyone.

I'm currently having a lot of trouble with my Adwords campaigns. I seem to be having pretty good interaction with my ads (6% CTR) My biggest issue, though, is my CPC. Right now, I'm spending an average of $1 per click. On top of that, only 3.5% of the click throughs are actually buying the product. It seem to me that my ads are pretty abysmal to be getting this low of numbers. Does anyone have any ideas about how to optimize them better?

Here is my current copy…

How do I optimize my Ads?