Need a user friendly image gallery plugin for clients

I am looking for an image gallery plugin where it is possible for every image from every gallery to show up on a page.

Currently I’m using NextGen gallery but it requires my client to manually insert galleries into the page using the content editor.

I would like to simply be able to code something into a template to tell WordPress to insert every gallery into the page, along with each thumbnail for each gallery.

Also, I would like for there to be the gallery headings and descriptions, so the output would be like the following:

<h2>Name of a gallery</h2>
<p>Description of the gallery</p>
*** thumbnails go here ***

<h2>Name of another gallery</h2>
<p>Description of another gallery</p>
*** thumbnails go here ***

Is this possible? I have a feeling it may be possible by using templates with NextGen gallery, but the documentation on creating templates appears to be very limited, not only that but I couldn’t even get the plugin to switch templates at all (even with one of the other templates!)

Perhaps it was conflicting with the hosting environment?

Does anybody have any suggestions?