I've just finished Brad Thor's "Athena Project." If you need a last-minute gift idea, I recommend it. I actually went out and got a copy for a family member.
A second, slightly pricey, idea: the Amazon Kindle. I got one for Christmas and I am unable to put it down. No need to get the 3G version -- the wireless model will do just fine (and is cheaper).
I know many of you will start your Christmas celebrations tomorrow. To you I say, unashamedly, Merry Christmas!
Here's my gift to you -- the human tuba: