The D7000 also has a "commander" mode to fire off camera flash using the onboard as a trigger (I think). Haven't used it yet but there's some info if you google "D7000 commander"
I'm off to read my manual![]()
A cheap option would be to use the D7000 in flash commander mode and just use a cheap flashgun on slave mode. The on-camera flash will pop up and fire a low powered flash, which in turn will trigger any flashgun/head that is set to slave but won't be powerful enough to affect the exposure
i will double check that this will work tonight if you like? i have an SB700 myself as well as some cheap yongnuo flashguns![]()
