From left to right in the picture above are Arashi (running Linux), Cecil, Nakago, and Samwise. [Quiz: who knows where each of these names came from?]
Samwise's monitor stand is indeed composed of old textbooks; O-chem has never been more useful. Nakago is the oldest Windows box, and will likely be shut down once we're done moving files, meaning that we'll be back to our usual three computers for two people.
And what's even cooler is how the setup looks at 2am with all the room lights turned off:
The view we woke up to this morning