Holy crap, that's a sick display there Eric!
Reminds me a lot of Niub Niub's famous diorama with the 4" figures (that he brought to C3).
So how'd you amass so many Imperial figures like that? I assume you haven't bought those all in sets, but are rather getting them individually...
I love the hangar wall too, the gun turrets on the outside of it, and the railings/balconies up on it. Does the wall extend along the sides of the diorama as well, or is it only the one wall? How long'd it take you to put the whole thing together?
I take it you don't do any customizing with the figures though, right? If so, you need to whip up some Imperial Dignitaries to complete the scene.
Great, great stuff. Keep 'em coming!