http://nikonites.com/flashes/11674-...gn-50-does-wireless-commander-slave-mode.html
It looks like this one has better possibilities but does not have HSS. Everything else seems to work I did some tests with TTL flash staying at f/5 then progressing 1/20, up to 1/320 (it does sync at 1/320) and photographing an aerosol can which remained at the same brightness as the background got darker using rear curtain flash.
Never used TTL/BL as I used an Olympus with Olympus flash and slow shutter similar principal. I usually shoot manual mode and if shooting outdoors I use a Sekonic 358 to get 30% flash with ambient. The flash goes under different names and I think Voeloon V600 may be similar. It also has a PC sync and will take a Canon 8-AA battery pack.
I was going to pick up an SB700 refurb at Cameta but they have been sold out.
I am very pleased with D7000 and 50mm 1.8d lens. The lens that I had for the Olympus 50mm F/2 was a macro but it did not have limit switch so if it missed focus it went macro and then came back on low contrast subjects. I ended up getting a Sigma 18-50 F/2.8 because of the constant 2.8 and Macro really pleased with that lens.
Ciao,
Lou Cioccio