I think this is a good example of what money can buy, the best i have experienced cost 10% of that so I can fully imagine the great effect you must get.
So from what i can assertain you have a system that does dim MH ballasts? If that is the case, for this to hook up to the profilux it must have a 1-10V interface, if this is the case then all you need is an interface card that is always available.
But as far as i know the ACLS is a system all of its own with its own built in control system?
As you can gather my knowledge of this system is weak, but if you can shed a bit more light then maybe we can look at it further, but I think your assumption is correct in repect to not hooking up.