There isn't really a clear cut answer but my starting point would be either the basic
SmartFlash twin head kit or the similar
ElitePro kit. Both will be fine for people photography but the extra features/controls of the ElitePro tip the balance for product photography, if your budget allows.
Both kits include a shoot through umbrella, ideal for fill light. You then have the choice of adding either a large softbox or a
70cm beauty dish with a
honeycomb and although I would advise the softbox for most people photography, the beauty dish, when used
without the honeycomb and
with the included diffuser, doubles up as a softbox of the same size. When used for product photography, the beauty dish used without the honeycomb gives a very directional yet reasonably soft light, and with the honeycomb it gives a harder light that will reveal the texture of whatever you're photographing.
If you're photographing small, shiny subjects then you'll need to put a fill light overhead, and although you don't absolutely need one, a
boom arm will make life easier for you. And I would get a
5 in 1 reflector too - invaluable!
Finally, there are some bits on the
Lencarta blog about product photography that may help.
