Just started Empire, by Orson Scott Card. He also wrote Ender's Game, a true sci-fi classic.
Read Moon...Mistress a few months ago. Thought I'd covered all of RH's stuff back in high school, don't know how I missed that one. Good stuff!
Major fan of Stevenson. Loved Anathem and Diamond Age, have Cryptonomicon but haven't really gotten into it yet.
For those who like this kind of stuff, a few recs: the Hyperion trilogy by Dan Simmons was incredible (certainly on my top-ten all-time); The Windup Girl by Paolo Bacigalupi was really good, and Richard Morgan's Altered Carbon trilogy was a lot of fun, too. I could go on, but these are a few that I've read recently and really enjoyed.