Which lightbox plugin should we use?
We often use Easy Fancybox WordPress plugin to enable a nifty lightbox pop out effect on gallery images. Just install and activate the plugin and your gallery images will pop out in a light box. There is also a great premium version of the Easy FancyBox - Pro WordPress lightbox Plugin with even more options to improve your image galleries.
An alternative is to use the popular Sliders extension which creates cool sliders for your listings and has a light box pop out effect built in too.
Here is a demo of the Sliders Extension.