Yeppers, Dekker and Peretti are good. I just read Skin and Monster. I have also heard rave reviews about House, which I just bought off of CBD I should be getting it soon. The Darkness novels by Peretti are pretty awesome.
other fantasy:
DragnSpell series by Donita K. Paul
The Chronicles of Narnia by CS Lewis
Let's see, The Great Divorce (read that last semester, checked it out from Uni library) by CS Lewis.
I am currently reading Six who Changed the World by Henry Enoch Kagan. It's more Jewish-based than Christian, but whatever. Moses, Paul and Jesus are three of the six so it's Christian enough I guess.
Good autobiographies:
China Cry by Nora Lam
all of Ben Carson's autobiographies
The Hiding Place by Corrie Ten Boom
Dorie, the Girl Nobody Loved by Doris Van Stone
A couple classics:
Ben Hur
A Pilgrim's Progress
Some decent contemporary Christian authors:
Gilbert Morris (mostly historical and romance)
Frank Peretti (mostly thriller/sci-fi)
Ted Dekker (mostly thriller/sci-fi/inspirational)
CS Lewis (variety)
Kristen Heitzmann (mostly inspirational/romance)
Tracie Peterson (mostly romance)
Karen Kingsbury (mostly inspirational/romance)
Francine Rivers (mostly inspiration/romance/historical)
Brock and Bodie Thoene (biblical and historical fiction)
I don't know many good non-fiction authors, because I don't read much non-fiction.