Also on shaky ground is the advice to use a DSLR camera as web cam. As pointed out in a recent discussion here, the problem with adding more devices to the chain is... more devices in the chain.
Dedicated diffuse lighting, wireless headsets, separate cameras etc.. participants will need to be patient while you prepare and configure your film set.
I used a wireless headset for awhile, but swapped it for a wired headset after too many times joining meetings without the headset pairing in time.