Joomla Based Auction Site

Auction site, Similar to ebay, but with a simplified user interface. Want front page to contain buttons for the following Motoring, Real Estate, Electronics, House and Home, Fashion, Hobbie / Collectables, and Everything else. and also a search bar. Want the front page to have minimal information on it. Once the buttons are clicked it should go to a standard auction site for what every catagory that has been clicked very similar to ebay. Options for putchasing would be a timed auction / buy it now. only members will be able to purchase and sell items. The site would be free to members to sell and buy, but we would like provisioning to add advertisments to the site i.e. banners