The Apollo's are available in two versions, first make sure that the version you have is DMX compatible (Apologies that this sounds obvious, but you'd be surprised at how many people ask the controllers for NON dmx lights & effects!).
The DMX control of the apollo's is about as basic as it gets, only requiring two dmx channels to operate!, so virtually any true dmx controller will do the job

, most DMX controllers start from 4 channels so this is more than enough to run the laser.
The cheapest DMX controller that I offer is a Soundlab 4 Channel controller the type which is supplied with the Colourscans, and the price is £69.00 + Carriage (£6.99 for 3 day / £11.75 for next day).