I'm wanting to buy both of these, but I'm not sure which one first. I would like a BGE2n grip for my 40D and a canon speedlite (not sure what type). I am into sports, but i also like portraiture. I would like the grip for extra battery life when out shooting sporting events and activities after when i don't have time to charge. I would like a off-camera flash, I recently used my teachers 580 exII, and it was great, but I probably could get through with a 420 ex and not notice a difference. I have never been a strobist before so i have no clue the differences of them, is it necessary to have the best right at the bottom, will it make a diff to someone like me? I just can't decide which one is more important to me right now. I might end up getting both at once if there is a good reason for both right now. Thanks.