Classifieds - Supporting both Free & Paid Ads

I'm looking to port an existing Joomla site onto wordpress and am looking for a solid Classifieds plugin that meets our requirements.

We need to be able to have both free and paid classifieds using the categories to segment whether the ad is free or paid. (ex. The events|jobs category costs $X to post but the accomodation category is free)

Is this possible within the Classifieds plugin?