(I don\'t know if there are any spoilers in that other thread, so I\'m starting this new one.)

Is anyone here rereading any of the older HP books before reading the latest one?  In listening to book one on tape, I\'m hearing little things that had no significance the first time through but now catch my attention.  For example, when Hagrid drops the infant HP on the doorstep, the motorcycle he borrowed was \"young Sirius Black\'s\".  That meant nothing to me way back when I first read the book, but little things like that make me wonder what other little tidbits might have been sprinkled throughout the books.  KWIM?