So I just ordered: 2 SB600s speedlights 1 SU800 controller 1 45" white umbrella w/ black backing (removeable) 1 60" gold umbrella 1 multiclamp 2 7.5 lightstands What do you guys think of this? I've done lighting before, but it's been brief and I didn't really do everything right... Anything you might add for this? Any 'must haves'? Thanks in advance.