Thanks CJK. I'm still tinkering with the "sandscaping." It seems to pretty much stay put due to the lesser flow in the tank, but for some reason, the clowns enjoy digging (it figures the clowns in this tank would be abbynormal too

) I'm not sure what to expect with the substrate. I used Tropic Eden, which to my eye is a little brighter than CaribSea. The cycle was done using Ammonia and Bacteria additives only and it "appeared" to provide for a cleaner cycle resulting in less diatom and algae bloom.
I've also implemented a "pellet conservation program". I'm working with the resident Clownfish population on making sure no pellets reach the substrate. All that said - I have no clue as for the moment at least, I'm not planning on any clean up crew. I'll occasionally stir the sand bed and hope the filtration system is up to the task.