Here are a few lesser alternatives for Photoshop, these are not well known but they still do the job !
Serif Photoplus & more (Free) :
http://www.freeserifsoftware.com
PhotoFiltre Studio:
http://www.photofiltre-studio.com/frames-en.htm
Xara Xtreme
http://www.xara.com/products/xtreme/
Have Fun :P