If you google search "waterjet" you will find many pages steering you towards water jet equipment suppliers. If you want to see water jet cutting systems in action in your area...call the manufacturers...they can steer you toward installatios of their product in your area.
Try this site as they seem to have quite a bit of info:
www.waterjets.org
Here are a couple of manufacturers:
www.omax.com www.flowcorp.com www.romeoeng.com www.calypsowaterjet.com
Jim