Hi glaubemann...
These are excellent selections. I would add:
THE PILGRIM'S PROGRESS by John Bunyan
THE CHRISTIAN IN COMPLETE ARMOUR by William Gurnall
THE KNOWLEDGE OF THE HOLY by A. W. Tozer
THE CROSS AND THE SWITCHBLADE by David Wilkerson
HUNGRY FOR MORE OF JESUS by David Wilkerson
NO COMPROMISE: THE LIFE STORY OF KEITH GREEN by Melody Green and David Hazard
MY UTMOST FOR HIS HIGHEST by Oswald Chambers
THE COST OF DISCIPLESHIP by Dietrich Bonhoeffer
GOD'S SMUGGLER by Brother Andrew
MEMOIRS OF REVIVALS by Charles Finney
THE SCHOOL OF CHRIST by T. Austin Sparks
REES HOWELLS, INTERCESSOR by Norman Grubb
THE AUTOBIOGRAPHY OF GEORGE MUELLER by George Mueller
FOXES BOOK OF MARTYRS by John Foxe
GRACE ABOUNDING TO THE CHIEF OF SINNERS by John Bunyan
This is just a quick list, but I think that I could think of several more if I paused a bit longer.
Personally, I prefer to urge new believers to refrain from reading extra-biblical works until AFTER they have a strong foundation in the Word of God and have read the Bible through (from cover to cover) at least twice (in addition to normal Bible study). This would help allow believers to effectively "test everything" by the primer of the Word of God.