Exede Evolution is the best thing for families. 5GB is plenty. We use about 700MB a week. It's plenty of bandwidth for downloading music and uploading pictures.
Never EVER get rid of the unlimited download zone. We love it and use it to the best of our advantage. Any Youtube video we want to watch we watch early in the morning.. I get up at 6am and watch a few couple videos. I watch the occasional video during the day. We also update our devices, software, and apps during that time. I even buy digital tv shows on amazon. Average use I get out of it is about 50-75GB a month. I make sure I don't abuse it and download like 100GB+ per month.