"Systematic Theology" by Wayne Grudem.
This is very accessible, the layout is friendly, and it is easy to understand.
Grudem takes a devotional approach whereby each chapter ends with reflective questions (that could also be used in a group setting), and finally with a hymn that is matched to the topic.
BTW I should point out that although I have put this under the title of "read in 2007", I have not read the whole of this book yet.
