michaelspotts
Puritan Board Freshman
I found these two lectures very interesting and worthwhile. I think you'll find them useful in your battle with those who doubt the preservation of scripture, a la Erhman.
bethinking.org - Bible + Jesus - New Evidence the Gospels were Based on Eyewitness Accounts
bethinking.org - Bible + Jesus - Bart Ehrman's "Misquoting Jesus": an analysis
bethinking.org - Bible + Jesus - New Evidence the Gospels were Based on Eyewitness Accounts
bethinking.org - Bible + Jesus - Bart Ehrman's "Misquoting Jesus": an analysis