I have """invented""" a vertical server rack
I've loaded it with six matching servers, and I bought a proper KVM switch for it
It'll be my data transfer/copy/recovery station, being able to do up to 6 jobs at once, completely independent of each other. The four hot swap bays on the front of each server make an awesomely easy way of working with them, and the remaining 2 sata channels run the unneeded optical drive and the 64GB boot SSD.