Our company is in need a of a developer to put together a site that will initially sell printed vinyl banners. see http://www.buildasign.com/CustomBanners. We want customers to be able to pick the size and type banners they want using size and single and double sided print as the cost parameters. We want customers to be able to upload files for their artwork, and then review the artwork in .pdf's. We would also like too build into the site a custom editing feature where people can...