As an aside - I had ot Google "IGBT" to see what some of you were on about, and when I read the definition I still don't know
So I'm going with the view that, it doesn't matter what it means so long as it works - simples - I like simples
I've dabbled with iTTL flash and found it to be utterly unreliable for my needs, hence I really wouldn't bother paying any extra for it as a feature, but something that would fire at well above the flash sync speed might be useful - any suggestions for power & transmitter that does that? (cheapish of course)
Dave