man, i played the Silent hunter 3 game, that was pretty mad, but the graphics and stuff on Silent hunter 4 look insane, its meant to come out in spring 2007. i might just have to get me a copy when it comes out.
Try www.subsim.com which has all things that is related to this game. I have SH 2 and I love it.
You should try to join one of the main battle groups that Subsim runs to which you have to down load the relevant programs to be able to enter their game.
Good luck and Good Hunting yachtie2k4