SAN DIEGO--(BUSINESS WIRE)--April 7, 2006--Viking Systems, Inc. (OTCBB:VKSY - News), a manufacturer of 3D laparoscopic vision systems for use in minimally invasive surgery, today announced that Director, President and Chief Executive Officer, Tom Marsh, has elected to retire from his positions to pursue other opportunities. Mr. Marsh will continue to serve as a consultant to the company.