Like Chris I'm a bit restricted from posting my views as a dealer. I will say it's a fairly large rig, compared to others. The D7000 may indeed be worth waiting for; it's not a D300s, but will have a lot of improved features and the "un-announced Nauticam" housing will, I'm sure follow suite.
I have shot this rig in a lot of conditions from offshore to local dive sites. I wouldn't shoot it if I didn't like it.
I have lots of 60mm shots on my flickr pages; using it with a diopter is one of my favorite setups, as you have 3 "speeds"; Fish Portrait, Med. Macro and "Poor Man's 105". A diopter allows you to back off to get better lighting, while still shooting macro, OR get higher magnification. Her's a few:

Aeolid by Pixel Letch, on Flickr

Scaly Sculpin & Invertibrates by Pixel Letch, on Flickr

Candy Stripe Shrimp-2 by Pixel Letch, on Flickr

Clarion Damselfish by Pixel Letch, on Flickr
Jack