Re: Should I use my tripod?
I just did my first "pro" wedding last weekend, and I had the same thoughts as you. I choose not to use my tripod. I now feel that I made a poor choice. I know the tripod would have made things much easier for me for the group shots. If I do another wedding, I will use my tripod.
Re: Should I use my tripod?
I'd say that you should bring it and have it close at hand if you need it, but you might not in a case like this. They're almost necessary for available light shots inside a church and can be great for formal pictures to help keep everything vertical, but other than that a tripod just might get in the way. Sounds like you'll have enough light to not have to worry about it.