HazardsMind:
Ok let's think this through. You have two photoresistors focusing on one source, and you want the turret to line up with that source, correct. Regardless of what's on the turret, you want to make it so the turret is pointing directly at the source.Well, being that you will be receiving readings from the photoresistors, in order to find the center of the two, you will need to compare the two readings and turn accordingly.
If that is the case, it is extremely simple to do. If that's not the case, then your not clearly explaining what you want to do.
yea, that's all I'm trying to do. I want to know how far away the IR LED will be detected though. If I can't make it work at 100ft or so, then it's not worth pursuing.