You may want to look into the Nissin Di866:http://www.nissindigital.com/Di866-1.html
For not much more than a 430 EXii, it has the same power as the 580EX, has a more flexible dual head(s) and will accept external battery pack! I have several of this flashes in both Canon and Nikon mount (and they share the same High-Power pack): http://www.nissindigital.com/en/powerpack-ps300.html
You save more this way as when you do get into wireless mode when multiple units are required (i.e. the more units you need the more $ you save with each buy) to augment your coverage...
photos (ϕοτοσ), light
graphos (γραϕος), painting
Last edited by NHL; May 31, 2012 at 5:30 AM.