Below are links to a couple of my favorite modular synth pictures that I scanned. The Roland System 700 shows that flat tolex covered cases look great in a studio setting. The Polyfusion shows that angled bottoms also look great in a studio setting. You won't find any other modular synths as good looking as those two. Notice that the System 700 seems to have something akin to Larry Hendry's magic bus running across it.