[Ladybird]

Hi All, here is my dilemma:

I struggle to capture the moving shots in bad light with flash: eg. Entrance of the bride into the church, so I have one chance to capture those shots. What happens is that I need so much light from the flash to light them well, that the recharge time for the flash is so long that I get 1 pic lit and 3 others dark and so on. I have the Canon Speedlight 580EXII and then I put in on the ETTL setting. Does anyone have advice for me to make this better next time?

Thanks!