From Saleen Software:
Flickr Downloader allows you to define your preferred image quality (original, large, medium). While the software and access to it is free, if you would like to store a significant amount of photos on flickr. com, there is a charge. You can pay for one or two years at a time using credit cards or your PayPal account if you have one. With your account you can store as many photos as you like and share them with friends and family. There are also a lot of add-on applications that will allow you to create calendars and business cards.