Ecommerce Joomla based website needed

Hi, I need an Ecommerce website with following features : 1.) Separate database based login system for users & Admins 2.) User registration process, with automated password / logins sent to their emails 3.) Interface for admins to add new products for sale, where they can add/ delete products & change their prices 4.) Payment gateway for online shopping 5.) Secure checkout system with INternational credit cards : VISA / HSBC / Maestro etc I myself am a web developer. So I give preference to bidders, with previous similar works. And this is SUPER URGENT to start, within next 24 hours. So hurry up. My budget is not too high. Thanks