Phazaar

Wholeheartedly recommend the Cactus RF60 here. I have 4 and the hotshoe controller - they trigger perfectly, at some pretty colossal distances. Not 100% sure exactly how far (I'm terrible at estimating this), but certainly far enough that I can't possibly imagine a legitimate use for longer triggering - including shooting architectural/automotive shots. I have yet to have them miss a shot, and their refire times don't feel any slower than the 600ex-rt, at less than third of the price. A HUGE bonus is the fact that the system will work the same on -any- camera system with a hotshoe. Being able to whack this on a EOS30 film camera, a 645 medium format camera, your buddy's Canon behemoth, your partner's Nikon setup, that absurd Sony thing your girlfriend insisted on buying, and the ridiculous Leica her father insists upon bringing on holiday despite taking all his photos on his iPhone... is not only incredibly useful for you as a photographer, but also makes you incredibly useful to your friends. The flashes are so obvious in how to use them (much moreso than most), anyone gets it, and it's quite inspiring. I think I've lent these flashes out more than I've used them in fact, and in return I've got away with borrowing a ludicrous amount of gear I can't afford, and even got a shoot booked too.

This is so much higher on my wishlist than anything else Fuji's working on. It shocks me they don't think there's a bigger market for it.