Admin content restriction

Hi all,
Need to know if this is at all possible and whether it can be achieved with plugins etc, or whether I need to be thinking a little more bespoke?

I am looking to create a site that allows you to become a member. Then once logged in you can create posts, add images/PDF’s etc .. But .. Members can only see their posts and content to edit, not the overall websites content. Think of it like play.com or ebay, you login but all you can see is the items you have posted.

I’m guessing I am not the first to need this sort of site with WordPress, but I am looking for a starting point.

Cheers

Neil