David

Pixel Random Quotes Images is a widget. 
Your quotes and images are randomly displayed in the Widget. 
You can delete, modify and upload quotes and images. 
It is a translation ready plugin.
For more info: http://belicza.com/wordpress/random-quotes-and-images-pixel-plugin/
A few notes about the sections above:
<ul>
<li>Require 2.8 WordPress minimum</li>
</ul>

Pixel Random Quotes Images

A widget containing custom quotes and custom images (set by an administrator) which are randomly displayed. It is a translation ready plugin.

eldougo

Tuxquote shows a random image of Tux the Linux penguin with a random quote either as a widget or shortcode.
You can add or remove images from wp-content/plugins/tuxquote/images/ directory. All jpg, png and gif images will be randomly used from that directory.
Add or remove quotes from the wp-content/plugins/tuxquote/quotes.txt file. Quotes are line delimited and HTML formatting can be used, enabling you to use for line breaks etc.
Development for this plugin can be found on GitHub: https://github.com/eldougo/wordpress_plugin_tuxquote
The supplied images were sourced from CrystalXP.net (http://www.crystalxp.net/) and are all distributed under the Creative Commons BY-NC-SA license (http://creativecommons.org/licenses/by-nc-sa/3.0/)
Please see images-license.txt for image licensing information and image attributions.
See the Installation section for usage instructions.

Tuxquote

Show a random image of Tux the Linux penguin with a random quote.

Pixel Random Quotes Images vs Tuxquote