I'm building a site that will feature commercial real estate listings. For each listing I need to have an image placed in the sidebar that is unique for every listing/post. I know there are of course widgets that would allow me to place images in the sidebar but I need to be able to assign an image for every listing/post and have them NOT show up on any other listings.
Also, if possible something that can be accomplished from WITHIN that particular post, maybe using a meta box? Any thoughts?