Anything by Frank Herbert is worth a read.
I have read every book he ever wrote, and they are all good.
One I highly recommend is "The Jesus Incident"
That book became a trilogy.
The second one is called "The Lazarus Effect"
The Third was started by Frank Herbert but finished by another author after his death. Although I have the book, I don't remember the name. (Sorry)
Hear hear on the Michener as well!
I've read all his work's too. (except for a few really obscure one's I can't find)
Ann Rice, Clavell, Koontz, Kurt Vonnegut, And I started Snow Crash, but haven't finished it yet.
(I read a lot) (I have no life)