I just got my copy of Mike Horton's new systematic theology. It is MUCH bigger in the hand than it looks in the amazon.com photo.
I've been waiting on this for a while. I have used Grudem for years, and still love it and recommend it. (I don't know of any systematic theology more accessible to the layperson than Grudem.) There are, however, a few areas of Grudem I don't like as much, and I'm curious to see how differently Horton treats them. (I think Grudem flirts with old-earth creationism a bit too much, and I tend to be a bit more cessationist than Grudem is, for a couple of examples.)
I'll post a review of this book down the road. Probably way down the road, as systematic theologies tend not to be page-turners at times, and this one is right at a thousand pages long.