Ok, so first of all I have a lot of questions about controlling flashs wirelessly. I have a d80 and one SB600. Could I control the SB600 wirelessly from the su800? Like instead of using continous lamps, Im wanting to use a sb600 on a light stand. I plan on getting a Sb800, I was reading that you could control sb600s through the 800 too. I just dont get what the su800 does lol. Thanks.