1. A method of planning for the transplantation of follicular units in a body surface, comprising: providing a user interface comprising a software-controlled processor, a monitor, and a user input device; acquiring images of the body surface; processing the images to produce a three-dimensional model of the body surface; displaying a graphic rendering of the body surface model on the monitor; and displaying on the body surface model a proposed recipient area for implanting follicular units, wherein the location of the proposed recipient area is at least in part based on an actual or desired physical characteristic.