Hi Guys Im new in Olympus world. Im thinking to use OMD camera in event, but not sure about the flash. I think the top of the line flash for OMD is the FL600R ? If yes, even this, I think still too small and doesnt have external power pack connection, right ? Is there an Olympus flash that equivalent of Canon 580ex or Nikon SB 800/900/910 (well those mostly use flash in events). i appreciate if anyone can point me the right info for this. Thanks.