And Timeline, which is all about time travel or Prey, which is about nanotechnology run amok.
Most of the stuff I read by him was when I was in HS. One of the things I appreciated about him was that he was a SF writer who tried to do different things -- like the Great Train Robbery, Rising Sun, Eaters of the Dead, Airframe, and Disclosure. Even E.R. Some of them were successful, some of them maybe not (although I believe they all sold pretty well).