Ad rotator for Wordpress

Does anyone have experience or recommendations on a good plug-in for wordpress that will allow me to place a widget or something on my site that will rotate through ads?

I was looking at these and thought someone might have input....
http://codex.wordpress.org/Plugins/Advertisement

 

One Plugin is wpadmentor Which I use in most of my blogs

 

here is one that I have seen before, never used it though:
http://blog.taragana.com/index.php/archive/wordpress-plugin-adrotator-rotate-your-ads-including-adsense-dynamically/

 

You could write one in php pretty easy...

some pseudo code for though:

<?php

array: http://www.com/widget.jpg
http://www.com/widget2.jpg
http://www.com/widget3.jpg

echo '<img src=\"widget' . rand() % (sizeof(array)-1) . '.jpg\">';

?>