Someone mentioned Tad Williams. His "Otherland" series is the best science/fantasy I've read in years. It all takes place in 3D virtual worlds that a secret cabal of super-wealthy industrialists build to ensure themselves immortality. Highly recommended!

Stephen Donaldson is another favorite, and I'd include both "The Mirror of Her Dreams" and the "Thomas Covenant" series, while his space-opera "Gap" series is quite twisted and misogynist.

I'd like Peter Jackson to film the "Covenant" series! I mentioned the books to George Lucas once, but he was too wrapped up in his own saga to care.

Cheers,
Michael