From a top on the DIS, I found this wonderful collage tool. I first tried it out on this LO, where I used photos from a 2006 trip to make this collage of a Mickey head. I'm so excited about trying this, and I've already made quite a few collages just testing the capabilities.
To download the free program, just Google "Shape Collage." There are Mac and PC versions. I just love how this LO turned out!!!