Build A Website - API Integration

I need a website like [login to view URL],it is a price comparison website for books, cd's, and dvd's. I want a website with same function and it should be different looking. Pls let me know your bids, i'd also require it to get internal SEO for the keywords i provide you Another thing , customization, that i can add or delete options of more products or more companies to search in afterwards, once you have a look at the site, you'll understand what i m trying to say, pls PM me how will you like to go about it