If you've ever wished there was a simple way to browse your image files from within the Finder on your Mac, check out Finder Browser. This utility adds a "Browse Images" item to the context menu in the Finder, and opens an image viewer window that looks as if it was always part of the Finder. Note that you'll need to log out and back in after installing Finder Browser before you'll be able to use it.

One note: Finder Browser does a good job of not messing with your file associations, so double clicking on an image file still opens it in your default editor. Nice touch.