Website Construction

I need to have a webiste developed that can be expandable.? I would like the ability to have the following available within the site. ? * Web site (Internet Store)**[][1]** * Shopping Cart * Payment Gateway (credit card processing) * Virtual Terminal * Merchant Account * ? * Pre-Integrated Merchant Account * Built-In Cash Register? [][2] * On-Line, real-time credit card processing * Virtual Terminal Functionality * Secured transaction processing using SSL technology * Unlimited product search engine * Automated e-mail confirmation to all customers * A hit counter (Customer Counter) * 24 X 7 merchant upgrade and edit capabilities