I finished Half-Blood Prince today. Read the review for some interesting comparisons.
The big news is, I'll be starting Deathly Hallows on the way home today. My big request to all (five) readers out there is: Please don't spoil it for me. I haven't read/listened to it yet.
And in other news, I am making some seriously slow progress on A Magic of Twilight. The language is hard to swallow and the characters don't really speak to me yet.
Sacrifice is coming along nicely. Ben assassinated the guy and is making his way off planet. I smell a Sith coming.