I enjoy the Sookie books, but then again I read the first 8 or 9 before seeing True Blood. The final book ,#13, will be out in the spring of 2013. If I remember correctly she said that she always releases in May, which means it'll be at least Nov. before I buy it as I only buy the paperback versions. I've already decided that I will wait until I have them all before rereading the series.
I have never read the Dexter books and I'm not sure how many seasons I've watched. The last episode I remember was when he "visited" the crazy woman in France, who kept burning her place down. She purposely endangered his girlfriend's kids.