I recently picked up a copy of Wayne Grudem's Sytematic Theology: An Introduction to Biblical Doctrine. I read through the first chapter last night and I think I'm going to really enjoy working though this book. It's going to be tough and I'm sure it will challenge me almost every step of the way, but I really need something like that in my spiritual life right now. I've been "coasting" for too long, it's time to flex my muscles a bit and engage in some serious study. When I'm done, it will be interesting to see how much I agree with Grudem.
One of the things that I like about this book is that it has personal application questions at the end of each chapter. I'm going to try to actually answer those questions instead of simply reading them and moving on.
The book weighs in at 57 chapters and well over 1,000 pages. And it's far from light reading. So I'm sure it will take me quite some time to work through it. But it's a journey I'm going to enjoy going on.