Drupal 6 Image Resize Thumbnail Maintain Aspect Ratio We have a content type which has an original image.  There is also a resized version which is not a thumbnail, but not the original size either which is used on a drill down page.

What is the best way to maintain the image aspect ratio for this drilled down page image?  I've found some functions, but is there a module or best practice way to do this?
You want the ImageCache module https://drupal.org/project/imagecache there are also additional actions if you require them https://drupal.org/project/imagecache_actions