I have the basic, plain "Think Different" poster that shows the set-up(actual size) as pictured above except laid out to use. I have a Cube in my office and a 15" studio that's currently dormant. A black keyboard and mouse are no problem, but I'd like to find another set of speakers as I only have two sets to share with 5 Cubes.
BTW, I was just using my favorite Cube a few minutes ago. It has an 800mhz/2mb L2 Sonnet and a Geforce 3. It's connected to the 17" ADC CRT.
I have two other upgraded ones-one with a 1.5ghz and the other a 1.8ghz Sonnet. I have another Geforce 3 that might go in the 1.8, although I'm also really tempted to a flashed 6200 in it(when I get around to flashing it). The 6200 is one of the few cards that will support Core Image, works in a 2x AGP slot, and will physically fit in a Cube.
I have stock ones(or mostly stock aside from video cards)-a 450mhz with a DVD drive and a 500mhz with a CD-RW.
BTW, the Cube is actually eerily similar to the trash can in terms of the size. Although both are a sort of "closed" designs the Cube does at least make it possible to upgrade video cards without too much difficulty and processors with somewhat more difficulty.