I'd like to have a site with listings of products for a particular niche, that links directly to Amazon for ordering. I've seen some scripts where you enter a node or keyword and it lists the relevant products for you, but I don't want to work that way (although, if it listed the results of the product search and then I could just check off which ones I wanted to include). Ideally, I'd like to feed it a list of ASINs and have the option to use Amazon's description or write my own. What programs do that?