I'm hosting a baby shower for a friend in 3 weeks as well and even though I will have only half as many guests as you, we are doing a potluck. It is too expensive and too much work to prepare that much food. ALL of the baby showers I've been to lately were potlucks and no ones feelings were hurt by untouched dishes. Platters are def the way to go if you are going to do all the food yourself though. Hope your shower goes smootly