I have an Olympus EP-3 and I have not long been shooting but I do like to help out my friends by taking pictures at their parties and am wondering about getting a flash. Nothing too fancy, preferably one that can attach to the camera as I don't really want to be too hardcore with separate lighting. I was recently in a wedding party where the photographer had one that flashed straight up/all around attached to her Canon. She used it indoors during the day and evening and I liked the results. Is there some like of equivalent for m43 (sorry I don't even know the model number of hers)? I also don't really know much about flashes, do they sync with the camera body or do you need to operate them in addition to the shutter?