Well the men in Briscat have released some specs on the boat, i might try and weigh mine at the lake tomorrow, but it is the prototype so it may not be accurate.
Will try and get some vid of it racing tomorrow as well, will be racing 2 up for the second race.
Specs can be seen here
Nacra 430 release
there is a vid of the 430 sailing at Tinaroo at the bottom of the page....
Chocko