One of my favorite little moments was Dumbledore putting the house Slughorn crashed/trashed back to rights, and the look of wonder on Harry's face while he watched it being done.

I totally agree that a little more dialogue wouldn't hurt.

I like Ginny, but I think her character is definitely underdeveloped (the Harry/Ginny relationship covers whole encyclopedias compared to the thinness that is the books' take on Tonks/Lupin, though), particularly for a One True Love. Not sure if I could see Harry/Luna, though; they're too...filial in some bizarre ways, I guess, for me. Though if I found a fanfic that could sell it, I'd ship it.