A few more:
Kim Stanley Robinson's
Red/Green/Blue Mars Series --- truly epic, and very well written.
Richard K. Morgan's
Altered Carbon --- couldn't put it down, despite the "frank"
language.
An as an
off-topic bonus, two of the best SF short stories ever:
The Last Question, by Isaac Asimov, and
The Monster, by A.E. Van Vogt. What a great read!
