Just started watching it this week and I've already watched 4 today and might go on for the 5th in an hour or so. We're one the second season too.
![Wink :wink:](./images/smilies/wink.gif)
Never read the book, but I highly recommend the TV series. My only grievances is that it can become difficult to follow every character's happenings (at least for those less keen than others) and the gratuitous cleavage. Well, not just cleavage, but the series has been good enough for me that the scenes you wouldn't watch with your parents go right past me.