WordPress MU

Hello,

I'm looking for a simple pluggin or a something alike in that area that makes is easy for random visitors to post an add.
A simple marketplace with image attachement.

If you have a solution to this please help!

Thanks

Pierre

Have you seen the numerous Classified themes out there?

Sorry, I dont quite understand waht you mean?
I have a theme that I am quite happy with that I bought from themeforest.

How do you mean?
Should I buy another theme as well for this feature?