Update...so I was the only photographer at the rehearsal dinner. Tough lighting conditions. A darkish room with dark wood paneled ceilings. I used my 7D and 24-105 with my 430 EX II bouncing off the ceiling all night. The speedlite was critical. I'm mostly happy with the technical results, but I certainly didn't succeed at telling much of a story. But maybe thats in part due to the bland nature of a rehearsal dinner.
Here's one of my four year-old saddling up to the bar.
This afternoon is the ceremony and then reception. We shall see how it goes. I'm in over my head! Hopefully the actual hired photographer is good and they won't have to rely on me.