I totally recommend the books. They really are much different than the show. The books are:
1) Much more light hearted and humorous
2) There is much less sex
3) There is not as much involvment of the other characters. For example, Tara is mentioned like 1 time in the first book.
4) The books are totally from Sookie's point of view.
5) The books are SO much different than the show, that even if you read them...you still will be suprised by what happens on the show.
I could go on and on, but the point is...get the books! They are super easy and fast to read, you won't be able to put them down!
Oh and BTW these books are superior to Twilight in every way.