New International Dictionary of Old Testament Theology and Exegesis
New International Dictionary of New Testament Theology
The Essential IVP Reference Collection – Contains “You'll have instant access to IVP's award-winning New Testament dictionary series (Dictionary of Jesus and the Gospels, Dictionary of Paul and His Letters, Dictionary of the Later New Testament and Its Developments, Dictionary of New Testament Background), the immensely popular Bible background commentaries (IVP Bible Background Commentary: Old Testament, IVP Bible Background Commentary: New Testament), and the New Bible Dictionary and New Bible Commentary, which have set the standard for Bible reference books for over a generation. And that's just the beginning! Does a particular verse trouble you? Hard Sayings of the Bible gives in-depth explanations of over 500 of the most difficult passages in the Old and New Testaments. Are you interested in the meaning of recurring images in Scripture? The Dictionary of Biblical Imagery will aid your exploration of the themes, metaphors, imagery and patterns of Scripture. New Bible Atlas, New Dictionary of Biblical Theology and New Dictionary of Theology will help round out your study of the places, peoples, interpretations and implications of biblical teaching." And more.
e-Sword - An unbelievable amount of free stuff for your PC. Excellent quality and easy to use. I highly recommend this!
Christian Classics Ethereal Library - For $20.00 you can get a huge collection of Biblical writings.