Wow, someone's got his braincap on, that's a very unique and brilliant idea! I'm sure it wouldn't be too hard to construct such a stand.
Dave, the setup looks very nice!
Since I've got somewhat of a similar speaker layout, relative to the rear wall, I've been thinking of picking up some acoustic panels to sit behind my front L/R's. Do you notice much difference with the panels removed, vs. with them on the wall?