Here's a little update with what I plan on doing with my tank...
I recently removed all sand and put down a thin layer of gravel. I then put my huge piece of driftwood on a side of the tank, leaving most of the tank space open. I then purchased about 50 pounds of rock and put them down randomly, as well as putting the old rock decorations I used to have in there as well. There is quite a bit of rock in there now, but it's looking pretty cool.
As far as stocking the tank, I've decided to go with a wildcaught Lake Tanganyika tank. Here is the stock that I've ordered:
(6) Tropheus Brichardi
(3) Tropheus Lupota
(8) Tropheus Ndole
(6) Paracyprichromis Nigripinnis
I think it will look pretty sweet when it's done.