In response to the idea about using different size holes to form a window, you could use SpaceShipOne as a reference.
Sorry for the large pic size, but that was the image I was trying to convey.
As for features/looks...
Kitbashing to form a sort of "techno-organic" front panel, maybe having water tubes come out of the case for a second, then zoom back in.
Making a lifelike case here. Something you would see in a sci-fi movie...can't really show you what I'm saying...
I believe that there's some sort of glass out there that responds to electricity by turning clear...not sure of name or price...but it'd be cool to be able to "switch" your window on or off.