Jamiedyce:
Hope some one can give me some suggestion:
According to your link the driver needs a power supply between 18v and 30v DC. I suspect any power supply in that range will be fine. Just make sure it can supply at least 2 amps. If you want the motor to operate at higher speeds then use a power supply with a voltage nearer the high end.
If you need more help with your project I suggest you start your own Topic.