Auction E-commerce web site

I am looking for someone to build me a professional grade Auction style e-commerce website. I want it to work in similar ways to eBay. Simply I want people to be able to come on the website-, which will be built for a specific market-, and be able to sell and buy products between members. I want this website to be a vehicle for connecting people who are looking to buy and sell specific products. A very important element of the website is ease of use. I want the system to be extremely easy and user friendly, not requiring technological knowledge. Furthermore, i want the website to be "light" and colorful. I want the website to be a website that people will enjoy using and will feel "happy" when they come "inside". Thank you very much