Dynamyte 2400 stepper motor failed

I have a dynamyte 2400 my X axis stepper motor just failed, (of course when i really needed to cut something)

I need to find a replacement for it, i have been putting off upgrading the 3 motors and the driver, maybe its time for that.

Anyway i really need to find a replacement motor for this, has anyone found a replacement?

or does anyone know a site that has a big selection of stepper motors?

Thanks