Simple E-commerce site

I will try and be as specific as possible: I want an extremely simple site. I need a very clean design and very simply put together. This is an ecommerce site that will need to have a shopping cart and accept payment via credit card to my paypal. I need the cart to add tax if necessary, add flat rate shipping based on zip code, and finally give me statistics. I need a site that I can easily edit daily. The premise of the site is a flash sale site. 1 product daily so easy editable front page is necessary as well as the price of the item. I need to have a simple inventory counter on the front page that updates once each item is purchased. I am open on what type of site, but it seems along the lines of a blog with a shopping cart. -E-commerce -Clean, sleek design -Secure cart program -Easy administrative editability -Change front page product daily -No product archives -Inventory tracker on front page -User registration or pay without registering -Email cache for newsletter -Simple menu linking to static pages -Ability to use coupon -Email@domain name -Shipping reports -Need a designer who is willing to explain how to work with site* *very important Again, I can't stress how important it is that I can easily edit the front page product. That will be the only product on the site. I want the cart to be clean and easy to use. I need someone who can communicate easily with me and understands exactly what I'm looking for.