That's a good suggestion, and pretty much what I did. You may remember a piece I did along a similar theme: http://www.renderosity.com/mod/gallery/index.php?image_id=979814&user_id=68865&page=21&member&np  basically I think I made a repeating pattern out of it and textured a plane that I slipped beneath the waves? It was years ago...

Why isn't it moving?