I just ordered these new Pocket Wizards MiniTT1 and FlexTT5. They are not cheap costing around $500 bucks just for the two units. I plan on getting more Flex units in order to be able to control more off camera lights. Without going in alot of detail these things just rock, because you can control off camera speedlites up to 1500 feet away in full ETTL mode! No more tedious time consuming manual adjustments and guess work. Amazing results first time.