Build an Online Store

Hello I am in need of a website/store and forum, This will be directed towards the gaming community. There will be an account that a user will use across the store and forum. The store will need to have an easy navigation that I can easily update products, the products will be items that are either affiliates or transactions. The forum will be a news dedicated forum with a subscribed to mailing list and facebook/twitter notifications so I can create topics and everyone will get notified via social media. This will be an "all you can eat hub" where people can come see and talk about gaming news and check out the latest in gaming products.