Although I'm sure most would agree that the films and TV mini-series are usually never as good as the book, that doesn't stop me from eagerly awaiting releases of these adaptations. Recently I watched The Pillars of the Earth miniseries, which was I thought was really good, though I haven't yet read the book even though I own it. I will one day!
A new screen adaptation of Jane Eyre was just released and I'm gasping to watch it, though I have to finish the school term first!
The second adaptation is... Labyrinth by Kate Mosse to be released in spring of 2012. This one is going to be awesome. It will be a four-hour TV miniseries actually and filmed by the same production team as The Pillars of the Earth, so I have high expectations. Here is the article from Shelf Awareness.
I recommend the daily newsletter by Shelf Awareness as a great resource to follow to keep up to date on the latest media, movie and book news.