I'll make another recommendation for Raymond Feist's books. I've only read the Krondor trilogy, but it was very good. I have a few other books of his sitting on my shelf, but haven't gotten around to reading them yet.
If you're into horror-type stuff, check out a book called "Drawing Blood" by Poppy Z. Brite. It is hands-down one of the best haunted-house type stories I've ever read. However, be warned - if depictions of homosexuality make you uncomfortable, you might want to stay away from her writing. She also has a few other books, but the only other one I've read is "Lost Souls", which is something of a vampire story (not totally, but it's been some years since I've read it). I think "Lost Souls" is also good, but "Drawing Blood" is definitely better.
Even if you're not a fan of the video games, the novels for Halo are pretty good science-fiction reading, IMO. There is a trilogy of books in paperback (The Fall Of Reach, The Flood, First Strike) and a new novel that just came out called "Ghosts Of Onyx" only available in trade paperback. Three of those books are written by Eric Nylund, while "The Flood" is written by William C Dietz.
I see you read the "original Dragonlance trilogy" and enjoyed it, I assume you mean "Chronicles". If you haven't yet, check out "Legends", that is another very good trilogy written by the same authors and continues the story of the Majere twins. IME, many people rank "Legends" right up there with "Chronicles" when it comes to best D&D fiction.