Portfolio/Gallery Plug-in
The plug-in I am using for my portolio/gallery is called NextGEN Gallery, created by Imagely. Here is a link to the support page, http://wordpress.org/support/plugin/nextgen-gallery .
This plug-in gives you an easy way to manipulate the layout of a photo gallery. You are only provided with a few select templates, and must pay for the “premium” templates. I selected this plug-in for similar reasons to the Form plug-in; ease of use and no cost.
