I also finally signed up.  Too many thoughts about it, but I was wondering if anyone else caught the almost replacement like nature of Maggie for Molly.  Just struck me that they have the same name (albeit shortened differently), and Maggie was wearing molly's old clothes.  I read another thread that was all about the importance of names in this series, and I figured Jim must have done that on purpose, almost a replacement for what harry did to molly by way of the mexico battle.  The little details that Jim puts in makes the series that much better!