Ecommerce Type Site + Graphic Logo

I am looking for someone who can do the following. 1) Create a catchy logo based on certain criteria 2) With that logo, I need one introduction page that needs to be catchy as well which I will provide details for. From here this will direct to the shopping cart script (reasonably priced) of your choice, that you will need to incorporate the logo and theme into. There are some key points that need to meet this project. 1) I am selling digital projects only. Therefore say I am selling one Microsoft word document, only a portion of it must be available for viewing to the potential customer. DO NOT BID ON THIS LISTING IF YOU CAN NOT FIND OR PRODUCE SOMETHING LIKE THIS. 2) There needs to be an extensive search feature to find products in the database. 3) And there are two ends: the buyer, and the seller. They both must under one username. Therefore you can buy and sell under the same username.