gtkam is an universal, free GTK+ application that will allow
downloading, saving, and manipulation of images from several 
different digital camera models, or from the local harddrive.

gtkam supports a wide array of digital camera models.  
Visit http://www.gphoto.org/proj/libgphoto2/support.php for
an updated list.

WWW: http://www.gphoto.org/proj/gtkam/