Leopard: Show Item Info in Finder’s Icon View
Contributed by Rob Rogers 
Tagged: Mac OS X Leopard By default, Finder’s icon view simply shows you the name of the directory or file. By enabling Show Item Info, you can get additional information like the number of items in a directory, the dimensions of an image, or the length of a music or video file. This can be done for all files and directories on your Mac, or you can enable it individually on select folders.
1. Open Finder.
2. To enable Show Item Info on all files and folders, go to the left pane and select Macintosh HD. Press Command+J.
To enable Show Item Info on an individual folder, go to the folder and select it. Press Command+J.
3. In the resulting window, check the Show Item Info checkbox.
4. Close the window.
Now you will have additional info placed on directories, images, and media files.
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Richard said on January 26, 2009
Thanks for the tip. You might make it more emphatic that this tip is for “Icon View” only. The “Show View Options” dialog changes depending upon the view that is shown. So your recipe does not work if you use View > As List, As Columns, or As Cover Flow