You should try some live plants, the gourami's would love them. I too must say that as much of a pain in the rear sand is to have as the substrate, it looks really great. Also if you have plants it makes it so much easier to plant them in. Until the roots get all tangled up in each other, then it makes it hard to move 'em.
Jakebrake those iMacquariums look pretty sweet. How do you get into them to change the water?
What kind of lights is everybody using? My tank has a 4x65w power compact fluorescent on for about 9 hours a day give or take, depending on algae and other factors. Anybody ever try using Mysis Shrimp for fish food? My fish love them with the occasional live black worm feast.