Oh man, Discworld is another series that is totally awesome. I still need to read them all, but from what I have read, I love it. It's good to hear that I'm not alone. :)

(I think my disappointment with the last 3 or so is because of a change in writing style. Maybe? I'm not sure. I didn't like the Order of the Phoenix book, but I liked the movie. I think it's cause of a lot of the house elf stuff and the like was cut out. Hermione annoyed me to no end with that. I think that's my own weirdness, though.)