Magento

Is it possible with Magento to have a site that allows members to sell their own products on it?  I would want to have a list of products they can choose to sell, say ‘Product A’, ‘Product B’, & ‘Product C’.  And they can set the price and condition.  They cannot sell any different products.  Is this possible?

Also, the buyers would pay the sellers directly upon checkout and the sellers would owe a fee at the end of the month.

Thanks,
Adam

This extension looks like it might work: http://www.magentocommerce.com/magento-connect/webkul/extension/5886/customer_partner
Does anyone know if would work with what I want to do?