Thanks everyone for the advice.
However, once I got the reception they had more lights up then my test so I was able to pull in 1600iso @ F4.
I had gone ahead and set up crosslighting (stage right, upper balcony, and in the back left corner of the room). However, I had a couple of different guests that saw my strobes and requested that I not use them. Does this happen often?
Luckily, I didn't really need the strobes as I was able to get some nice shots using just bounce flash. Otherwise, I would have used them anyway if the lighting had been really bad.
Anyway, this was my first real wedding. It was extremely stressful and I got maybe 4 hours of sleep the night before thinking about it. The actual wedding wasn't as bad as the fear of doing it.
A few things I learned that might help others:
1) I usually shoot manual but decided to use AV. I quickly learned that I was not to using AV and it took me a while to get used to it.
2) I had a couple of moments where I just couldn't figure out the right settings with the lighting conditions. Took a little time to get back on track and not get rattled.
3) My only food for 7 hours were two power bars and some gatoraid. Make sure your stocked up with something to eat.
4) I brought mono lights for the formals and it seemed like it took forever to setup. I did do it before the service, but it took me away from getting more shots of the b&g getting ready. I'm going to spend invest more time in using strobes instead.
5) I had a couple of guys that did more shooting during the reception then I did. They did not stop the whole time! They went around the room getting table shots and followed me around getting shots that I did. They didn't get into the shots that I needed, so there wasn't a problem, but it was still annoying.
6) I also had a hard time getting close to the b&g during the reception. I used a 24-70 but alot of my shots are too far away. I do like getting the big picture of a scene and cropping, but I need to learn to move closer in.
Canon 5d Mark II - 24-70 f2, 70-200 2.8 mk2, Sigma 50mm F1.4, 85mm f1.8, 35mm f2, 580exII, AB400 x 2, AB800 x 2
Rolleiflex 6003 - 80mm