I have a portion question as well. While mine's not nearly as big as BigDaddy, it's the first time I've cooked for more than 4 people (probably going to be 16-18 at the gathering). And I'm cooking for my in-laws for the first time to boot.
I am making shish kabobs for Mother's Day. Requests for things on the kabobs are as follows: mushrooms, green and red bell peppers, pineapple, onions, steak, chicken, shrimp, and pork. I've got the amount of vegetables worked out (I think) but I'm kinda at a loss for the meat. I was thinking maybe 2 pounds a piece for each meat. That will be 8 pounds for 16 people. Whaddya think?