Noah:
I wouldn't have thought of using heightmaps, but that sounds like a great idea to try out. Thanks for the code reference.
For vehicles I have not tested the prediction code. If it is like most games I've tested, one person will think the vehicle is doing one thing, while the next person sees the vehicle doing something completely different. Like driving through a wall perhaps. That is the type of problem I've seen in games other then Tribes 2 so far. But I am hoping Gamestudio will do well with this. I'm working on building a suitable level and converting models now. I'll test it out in a few days.
Nardulus:
I would be interested in anything with real waves. No Walmarts where I am in Australia, but I think they should build a few, the stores here are too small for my American taste. I'll check with the local software stores and see if they have it.
I'll send you an email today. Thanks.