group data collection

I am trying to create a user friendly report that our ministry leaders can fill out. The more user friendly the better. I have been working with some ideas such as the meetings module which shows some promise. I am leaning toward CCK fields (versus webform)because of the ability of displaying the data in many ways. Each small group has a leader who fills out the report. I would like the list of the people in the small group to show up in a select list as a means of taking/reporting attendance.