Thanks for your note! So the camera's flash would set off the speedlites... and the transmitter would too?! Please excuse my ignorance, but why buy the transmitter then? My sis guessed it might be necessary if the camera is a good distance away from the external flashes.
My sister is indeed a pro, but not at in-studio stuff. She covers photos for the Atlanta Journal and does freelance weddings (day-of-event stuff, not sittings). She is learning a bit along with me.
On the stands... I guess any stand would work? And you mention I need adapters... to fit the stand to the flash?