I did a series of 30sec Promos for the iNkaba Launch Campaign on DStv's Mzansi Magic. The sets weren't built yet so I did all of it on green screen. I "built" the 3D environments in After Effects using stills & prop cutouts. I shot with my Nikon D7000, which proved to be an incredible Green Screen "tool" - GREAT for keys.
This is the "Nomsa" promo from the Launch Campaign.