I think there is a site that does this already. Try camelcamelcamel.com Having said that, I appreciate your zeal and effort. No amount of education would have prepared you as much as the workk involved in creating a fairly complicated website. Good job. I might just be using it. :)
I'd be delighted (:
But I also can't deny that camel^3 looks like a (much bigger) competitor. I've some ideas to improve what bugs me about Online Shopping, maybe one of them can differentiate me enoguh.
As I learned today: No reason to give up