You should PM Fooser. His rockwork is WORLD CLASS and I'm sure he'll have some awesome advice.
Here's a video:
http://s1112.photobucket.com/albums/...thonysTank.mp4
There's barely any rock touching the bottom of the tank, most of it is held up in the water column by clever spacing, ingenious stacking and a crap load of zip-ties. He's also allowed plenty of room for his corals to grow out.
The last point is something a lot of people do not properly account for when they set up their elaborate rock work overhangs and whatnot. Corals can grow big and they can do it FAST. Take a look at Leonardo's Formosa Forest for further evidence on this:
http://www.leonardosreef.com/formosa-forest/
Another option is to go total, all-out Iwagumi and run something like this:
http://www.leonardosreef.com/leonardos-lagoon/
Minimal rockwork, just plenty of planning and foresight towards composition and negative space.