Photoshop Animation
Try one of the following tutorials.
http://pelfusion.com/tutorials/40-photoshop-tutorials-to-create-animation/weeblylink_new_window
Recommended: http://www.teachtutorials.com/photoshop/2442-Easy-create-falling-snow-to-add-to-an-image.htmlweeblylink_new_window
Create your own 60 second animation in photoshop.