Need a E-commerce Website and ongoing support

I need a top notch professional scalable e-commerce website built front to back. Website must be built using asp.net and be database driven (also to be created) Functionality and speed to be similar to any of the large box store retailers in Canada ([login to view URL]) and the design will most resemble some aspects of s t a p l e s . ca and some aspects of g r a n d a n d t o y . com Major difference is that our current product line is much more limited then the above but this aspect of categories and products must be scalable as products are added. Customer log-in, tracking, online ordering tracking, products and pricing to be database driven. Secure online payment,invoicing,integration with service provider. Needs to run fast, be secure and SEO optimized to have a high ranking on search engines. Ongoing support including consultation would be required. Need to accomplish the above at a very low cost. Send me an email with your qualifications, price, questions or comments.