Well, over here D200 will be available for pick up next week. Both D200 and 18-200DX are now in stock but the distributer here are not allowed release them until the rest of SE Asia get their stash as well. So officially Dec 19 for D200 and Dec 23rd for 18-200DX over here.
Alex, I am curious about your comment on F2.8 12-24mm. Practically I am not sure that I see the advantage, especially for UW use. For underwater use, I imagine that most of the time, you would need to set the F stop at F 7.1-9 or around about that but certainly more than F5.6 to get the entire virtual image on the dome in focus. Also being stuck at 1/320s shutterspeed when using strobe, I am not sure how handy F2.8 would be underwater.
At F9, I am not sure how much better the image from the F2.8 12-24mm would be over the current 12-24mm.
I suppose for topside use, it is a different story!