I think for indoor shooting with flash, the 6x7 will be just fine with any flash -- yes, as one poster said, get a decent flash bracket for it. You could just use the cold shoe that is on the wood handle, but you want to get the flash away from the lens plane. Stroboframe has some nice brackets that allow you to flip the camera from horizontal to vertical without changing the flash position. A PC cord and a Vivitar flash as already said above, and you are in business.