Coupon Web Development

Need help with website design similar to the ones I found here: [login to view URL]:Coupons Standouts to me are: 1) [login to view URL] 2) [login to view URL] 3) [login to view URL] The site developed would also have an area for luxury clients and would cost $1.99 for membership yearly. Also required: 1) SEO 2) Traffic 3) Integration of partners/vendors 4) Integration with payment/shopping feature 5) RSS feed of coupons Would prefer site be designed with open-source software like Joomla.