I need a summary of HBP

My brother (the Philistine) has not read any of the HP books, but he has seen the movies. He's a reader by nature, but he's been too busy with law school for much recreational reading. ANYWAY, now he's done school, and after trying (unsuccessfully) to get me to tell him what happens in DH, he has promised to read it.

But first, we need to get him up to speed. The deal I made with him was that after he went to see the movie-OotP, I would summarize HBP for him (my least favorite of the 7 books so I won't make him read it), and then he would read DH for himself.

I could summarize HBP for him myself, but I do have a tendency to give too much detail, and I don't want to bore him to tears. I'm sure someone, somewhere, has posted a good summary of HBP which gives all the pertinent (i.e. need to know for DH) details. Could one of you kind people point me to it? Thanks!