Quick connect guide for the floppy, Arduino, and PSU.
Rather than waste PSU floppy conenctors, i just took some solid core wire and parallel connected 5v and GND from each floppy drive, then used a jumper(see pic) for drive select, and connected the step(pin 20) and direction(pin 18) to the Arduino. Furthermore, contrary to "popular" belief, only five connections are required on each floppy drive. 12v(Yellow) is not required, and pin 1 of the floppy cable doesn't need to be grounded.
The following are the only required connections for each floppy drive:
Pin 14->GND this can be done by simply putting one of those IDE HDD 2 pin jumpers between pin 14 and a nearby GND pin on the floppy drives data port.
Pin 18->Arduino digital pin
Pin 20-> Arduino digital pin
5v(Red) to External 5v PSU
GND(either black wire) to Arduino AND external PSU GND
8 floppy setup:
Video of my results: