Stuff I've read lately

"Von Neumann's War" (John Ringo) - This is a standalone novel. It covers an invasion of the solar system by self-replicating robots (ala a proposal by Von Neumann for a method for us to explore the galaxy). Fortunately for us, the probes programmers didn't expect concerted, intelligent opposition - humans are able to reprogram them just in time to prevent our extermination. Think "Independence Day", with more marines and less Jeff Goldblum.