Sticking with popular books I have been impresssed with Carl Zimmer's
Evolution and
The Science of Discworld written by Terry Pratchett, Ian Stewart and Jack Cohen (the science by Steward and Cohen is interspersed with a Discworld story by Pratchett, so I suppose it might not work on all fundamentalists - some just think it's wrong to read books with "witches" or "wizards" as sympathetic characters !).
The Science of Discworld II : The Globe deals more with humans but it is more about psychology then the physical evolution of humans It is still worth reading but it is perhaps on less certain ground and more dependant on the authors opinions.
John L Casti's [b]Paradigms Lost[\b] and [b]Paradigms Regained[\b] might also be worth considering. They examine a number of scientific and philosophical issues, including abiogenesis, genetic determinism and human language capacity as well as extra-terrestrial life and AI. The second book is a companion which reexamines the issues in the light of more recent evidence.
I would suggest starting with Zimmer, unless you feel that the approach taken by Casti or Pratchett, Stewart and Cohen is likely to be better received.
For your own reading, Mayr's
What Evolution Is is indeed good, but you might find Mark Ridley's
Evolution easier going - both are itnended as undergraduate level texts.