I am looking for a Wordpress ecommerce theme or a website script for a marketplace that lets users add their own products, and if a sale is made I get a cut of the sale? For example, a user can sign up to the site and add their own products and price, and if they get a sale they get 80% of the sale and 20% commision goes to the site owner. Anything around like this?
Some of the plugins that might prove useful for this purpose are, WP e-Commerce WooCommerce or Getshopped Plugin Thanks.
If I'm not wrong, WP e-Commerce and WooCommerce seem don't have this function, you need a plugin for this.
I used to use Zen-Cart (http://www.zen-cart.com/) for one of my e-commerce sites. This is an example Zen Cart site - http://www.pomonafruits.co.uk/. You can get it installed with Softalicious if your web host supports that. I really wouldn't recommend using WordPress, it's not designed for a web store. (Although I might actually be creating a theme designed for stores... Watch this space.)
I think you should check out this theme called wpforest. It has all functionality you are asking for and even more than this.