classifieds ads

Hi,
I wanted to know if the following is possible in the e-Commerce Module.

• Ability to provide users to post ads of items they wish to sell. This would be more like the classifieds feature in which they create an account but may only place one ad with their contact details. I want vendors to be able to upload items in their store and have people be able to either purchase it online or order by phone. But I would also like to allow normal individuals to upload items they wish to sell and have buyers find them.