Let customers add there own product

Hello there,

Is it possible to let different persons add and edit there own products in the admin area.
I like to make a shop where everybody can place there product and sell it to others.
To make that happen a person has to have a unique name (perhaps use the manufacturers file) and password.
When a person goes to the admin area and logs in he has to be able to add products and edit them. The main thing is to show only the products of that person and hide all other products in the database.

It would be nice if there is someone who can help me with this.

Thanks Tron

Zen Cart is not a "mall" type of cart script - there may be a module to semi-allow what you want but by default it is not supported