Xsee

BITcom Xsee is a native Mac OS X image browser and viewer, developed in Cocoa, with a beautyfull Aqua interface. Supporting gif, jpeg, tiff, png, icons and more, full drag and drop interface, built-in tools for renaming files, convert images, create thumbnails. Integrated slide show for viewing images in window or full screen, customizable toolbar, full support for mouse or keyboard navigation and much more. It's freeware and available for Apple Mac OS X only.