I was going to buy an additional new 580EX 2 yesterday and Canon's prices have gotten so high. I looked at buying the additional flash as I bought the Radiopopper trigger JrX studio system with their canon cube attachment for the 580 and thought it be cool to add a second flash for some more dynamic lighting. Ended up skipping the additional 580EX and will stick with my Alien Bee strobes plus my standard 580EX and look at adding the new Vagabond Mini Lithium portable battery so I can take my higher power lighting anywhere for $240. For the price of the 580EX II you can buy a AB1600 strobe unit and have way more light and accessory options.