Why download ready-made grunge designs and not spend some time to have a browse around and work on your very own creative design?
In this post you will find step by step great photoshop tutorials to create your own unique grunge design. You will also find resources on how to create your very own unique grunge brushes, for going really wild on your page design.
GREAT PHOTOSHOP TUTORIALS ON GRUNGE DESIGN
CREATE YOUR OWN GRUNGE BRUSHES