Sorry if this has been hashed over before. I'm in the process of researching lights for my start up studio. My budget for 3 lights with stands and umbrellas is about $800. I think I've narrowed it down to either 3 Alien Bees B400 flash units or Photogenic 2-AKC320 and 1-AKC160 flash units. Does anyone here have any experience with these units. Thanks for your input!