Hi, @southern_cross: I'm most interested in your work. Myself looking at the possibilities to use Arduino + shield to prototype a marine monitoring interface. Basically I would want to monitor and convert to NMEA2000 the engine data you mention plus some additional ones, like PGN 127508 - Battery Status. Possibly also some environmental data and in future also read and parse the AIS PGNs. I've previously only been working in the NMEA0183 domain though now believe that the transition to 2000 is inevitable. If you are willing to share your progress and also specify how you would want to co-operate I'd be very happy to join.