Here's just a sample, but by no means is it an exhaustive list:
G.K. Chesteron
The Everlasting Man
Orthodoxy
William Lane Craig
Philosophical Foundations for a Christian Worldview (with J.P. Moreland)
Philosophy of Religion (General Editor)
Reasonable Faith
John Dickson
666 and all that (with Greg Clarke)
The Best Kept Secret of Christian Mission
If I Were God, I'd End All the Pain
A Spectators Guide to Jesus
A Spectators Guide to World Religions
Vital Signs: The Wisdom of James for a life of faith (with Simon Smart)
Terry Eagleton
The Illusions of Postmodernism
Reason, Faith & Revolution: Reflections on the God Debate
David Bentley Hart
Atheist Delusions: The Christian Revolution and its Fashionable Enemies
C.S. Lewis (All of his writing is a worthwhile investment)
The Abolition of Man
The Chronicles of Narnia
Mere Christianity
The Problem of Pain
The Screwtape Letters
Surprised by Joy
Alister McGrath
Christianity's Dangerous Idea
Intellectuals Don't Need God and Other Modern Myths
John P Meier
A Marginal Jew: Rethinking the Historical Jesus (5-Volume set)
Donald Miller
Blue Like Jazz
Basil Mitchell
Faith & Criticism: The Sarum Lectures 1992
J.P. Moreland
Kingdom Triangle
The Lost Virtue of Happiness
Love Your God with All Your Mind
Mark Noll
The Scandal of the Evangelical Mind
Amy Orr-Ewing
Is the Bible Intolerant? Sexist? Oppressive? Homophobic? Outdated? Irrelevant?
Peter Stulmacher
How to do Biblical Theology
Revisiting Paul's Doctrine of Justification: A Challenge to the New Perspective
N.T. Wright (again, I enjoy and recommend most all of his work)
After You Believe
The Challenge of Jesus
Christian Origins and the Question of God (A 3-set commentary)
Evil & the Justice of God
Judas & the Gospel of Jesus
Justification
The Last Word
Simply Christian
Surprised by Hope
Ravi Zacharias
Beyond Opinion (general editor)
Can Man Live Without God?
Has Christianity Failed You?
Jesus Among Other Gods
Walking from East to West
