Hi all,

I'd like to create a website that will enable members to add content : let's imagine they have items to be sold, and they want to create one web page for each item to be sold. Those pages should be viewable by everybody, but should be editable only by the member who has created it of course. Each item should be stored in a category. In fact it's very similar to what eBay does (except it's not for auction at all), or maybe a site for classified advertisements like www.adoos.co.uk is a best example.

The application should be dimensioned to allow potentially millions of members, with few items (around 1-10) for each member. Items page can be edited by its owner (the member).

Is DNN appropriate to manage such application?

What module(s) should I use to create the "items" pages ? Wiki seemed a good start, but it enables "everybody" to edit content, while I need only the item owner to be able to edit it. 

What module(s) should I use for categories and for listing all items per category?

Thanks for your help