Not sure what this is good for, but just felt like playing a bit in Photoshop. Here's a comparison between the "original" (well, B&W) image from the istD and a version with grain added:
http://www.jbuhler.com/blog/archives/00000142.html j -- Juan Buhler http://www.jbuhler.com blog at http://www.jbuhler.com/blog

