We just recently finished reading the Big Picture Story Bible as a family.
This is the best children's Bible I have ever read, and is great for family devotionals.
It's not so much that the pictures are really big! But its more the way that it tells the Bible as one big unified story:
In each individual Bible story, it shows how it fits in with the meta-narrative of God saving His people through Jesus.
This means that children can get interested in the individual Bible stories, seeing how they all relate together and how they all point to Jesus Christ.
I really enjoyed reading this Bible with my family, and we are now reading a different Bible, but I can't wait to start this one all over again.
If anyone wants to have a look at it, you can see it at
http://www.amazon.com/Big-Picture-Story-Bible/dp/1581342772
Peace
D