You gotta read this. New engine technology that just knocks my socks off. Yanmar has come up with a new lighter diesel engine with marine applications that should shake things up in the near future.
http://www.boattest.com/engine-review/Yanmar/12500050_8LV-ZT370-Joystick
http://www.boattest.com/engine-review/Yanmar/12500050_8LV-ZT370-Joystick