Factory42

Factory Featured Plugin displays a set amount of posts in a loop with a custom field image and links to that post, making a gallery of images linked to the posts.
Has configurable settings, such as; 
* Image Width and Height 
* Set the category to pull posts from 
* Set the amount of posts to show.
Nice and easy way to present a certain category of posts in a widget area. Have a look at the Sceenshots to get a better idea of what it looks like.

Featured Factory

Displays a set amount of posts in block with custom field images. Configurable from the Widgets panel.

Bill Erickson

The Genesis Grid plugin was design to allow users of the Genesis theme to easily display their posts in a grid format.
“Features” are full-width posts at the top of the listing. “Teasers” are the posts broken into columns. You can set the number of Features and Teasers for both the homepage and inner pages, and how many columns the teasers are broken into.
You can also specify the image sizes used for Features and Teasers. I recommend setting Features for Large, and Teasers for Medium. Then go to Settings > Reading and set the dimensions of those images as needed. If you have already uploaded images, use the Regenerate Thumbnails plugin to rebuild the thumbnails at these dimensions. If images aren’t showing up, make sure you have “Include featured images” checked in Genesis > Theme Settings > Content Archives
Finally, you can specify where the grid loop is used by checking Home, Category Archives, Tag Archives, Taxonomy Archives, Author Archives, and/or Search Results. See the Developers section for more fine-grained control.
<a href="https://github.com/billerickson/Genesis-Grid/wiki" rel="nofollow ugc">Documentation</a>
No support will be provided by the developer

Genesis Grid

Customize your archive pages in Genesis to use a grid layout. Requires the Genesis theme.

Featured Factory vs Genesis Grid