I found the datasheet for that actuator at Linear Actuators & Motion Control Products - Progressive Automations. It takes from 2A at no load to 9A at full load and max speed. If the load is expected to be light then MC33926-based H-bridges such as http://www.pololu.com/catalog/product/1213 should be suitable.
The homing sensor is likely to be an optical pickup that provides a signal once per revolution of the screw so that revolutions can be counted. Once you know its details, you can easily simulate that with an Arduino.