Currently peoples figures are most favorite vector shapes among vector stocks and designers. Because it is easy to create them and use, but they can make you graphics look much more eye catching & cool-looking. It is very simple to modify any vector image: remove elements, change color, add something new, rotate, change size. Vector images can be edited in different computer art programs, for example: Photo Styler, Flash, Corel Draw, Xara, PMView, and certainly Any Adobe Software Indesign, Illustrator, Photoshop etc. can be used to open and edit vectors. As for me, I prefer to use Illustrator CS3!.