The wall-wart power supply is 12 volts at 3 amps. I read that stepper motors should be run at a couple times their labelled voltage, and since I have a similarly sized stepper motor listed at 3.36V, I thought 12V would work fine. Each EasyDriver can do a maximum of 750mA, so the 3A from the power supply should be quite ample! I don't know if the thinner wires will handle this current or if the steppers will even run with 750mA or if the 12V will be good or bad for the motors, so I have my fingers crossed on multiple aspects of tonight's activities! Wish me luck and use the contact page if you have hints, advice, or suggestions!