I am going to be attending a family reunion this weekend, and I guess you could say that I am the "unofficial" photographer. There will probably be around 80 people, and I have never taken many group pictures to begin with, much less with that many people. I don't know if the room is even big enough to get everybody in the picture, and moving everybody elsewhere is not going to be an option. I have a Nikon D70, 18-70mm lens, SB-600 speedlight, and a wireless remote. I was wondering if anybody had any tips they could give me. Specifically about lighting or posing, or anything else you think would be helpful. Thanks.