They get slower on down the series. I stopped the originals at Children of Dune (I think.) I've read the prequels (House Harkonnen/Atreides/Corrino) and liked them. Now I'm in the middle of the pre-prequels, and they are very cool.
"Also picked up The Dead Zone by Stephen King. I've always liked his adapted (ie:TV) stories, so now I'm actually going to read his books."
Start with the early ones. His elephantitist of the tongue gets worse and worse. It took forever to get through Tommyknockers. I think IT was my favorite overall. Misery would make me physically ill at times, so I'd have to lay it down for awhile.