I've done quite a bit of reading with the computer down and having to travel a bit in the last 4 weeks. Here's the three I read:
1. I'll second the thumbs up that wilcarjer gave to "The Rule of Four" by Ian Caldwell & Dustin Thomason. Very "Da Vinci Code"-esque. The best writing of the three by far.
wilcarjer, what didn't you get about the end? PM me if you want.
2. "Scarecrow" by Matthew Reilly. In the style of Tom Clancy, Reilly creates some very good characters and an interesting story revolving around a plot to create global anarchy by the members of Majestic-12.
3. "Raising Atlantis" by Thomas Greanias. The weakest writing of the three books (this was originally an eBook on Amazon) the writer is the husband of Laura Greanias who is an executive editor at the L A Times (it's ok Thomas, I forgive you). Still, the book does it's job in creating a decent science fiction story.