Hey! So here's the situation... I have volunteered to do team photos of ~50 youth soccer teams over the course of two days. This is the first time I have attempted such a feat. Anyways, the shots will be taken during their finals, following the trophy ceremony. That means that throughout the course of the day, I will be in the same spot, but with varying lighting conditions. I decided to rent a Canon Speedlite 580ex II to try and have some control over the lighting (their last photos were taken with a P&S, and the kids had raccoon eyes, blown highlights, were in shadows of other players...Just not very nice). So that sounds good. However, this is the first time I'll be attempting using any type of lighting. So I have no clue what to expect. I'll have the flash the evening before the event, so I'm hoping that coupled with your expertise I will be somewhat prepared. I need to know anything and everything you can tell me. I'm shooting with a Canon XSi, with either a 18-200mm or a 50mm. Will I have to sync it, or does that occur manually when I attached to the hot-shoe? What kind of control do I have over the strength of the flash? I don't want to get to complicated, but would it be better if I reflected it off something (ie. a "reflector" such as a large piece of white foam-core)? Is it possible/desirable to mount the flash to a gorrilla pod so that it is off camera? As I said, I have never tried to do such a thing before, but luckily, they are not expecting much. If you think that I'm in over my head, let me know, but try and give me some advice nonetheless... Thanks!