A lot of good stuff from Berry huh? The Romanov Prophecy is actually nice, its the first and only thing I get to read from Berry. Although his type of story-telling is lesser electricity than Brown (based on what I have read so far) but the guy show promise to stir interest. Try the Rule of Four also. Its also very nice although there will be chapters that can be quite dragging but its endurable. Perhaps with me coz I get to relate myself with the character in the story.
By the way, are you guys only interested in novels? Have you tried docs? I am reading The Jesus Dynasty right now. It is also quite interesting if you are interested in research and logic.