Camera Size is a free online digital camera comparison tool. This web application was designed to help you compare one camera's size relative to another camera, and view each camera from different sides. The site is being continuously updated with new camera models, so you can compare the size of older cameras with the latest models.
Great tool for a camera buyer.
It reminded me of this comparison photo that I took a while back, showing the two size extremes of the DSLR spectrum. :-)