Flickr2Photocast is a tool that generates an iPhoto-compatible photocast feed from Flickr containing up to 500 images in their original format/resolution (i.e. this is better than the standard Flickr RSS feed).
UPDATE: Flickr2Photocast can now authenticate to retrieve private photos. Click the "login" link to give Flickr2Photocast permission. Also, drag this: Flickr2Photocast to your links bar and click it whenever you want to save a photoset on flickr.com. Questions/Comments? Visit the forum.
Enter a search below or just click "Create". You can use the "Preview" button to preview the photocast first.