Psalms: A Commentary, and its use in the New Testament (2 vols.)

I was eager to read the second volume for the sake of research into the Synoptic Gospels, and their relation with the rest of the NT possibly. Psalms in the NT presumes the old Q theory of Gospel transmission and thereby devotes much of what I would consider wasted space on pure speculation to fall in line with the theory. While they conduct a decent survey of where the Gospels seem to invoke, quote or otherwise use the Psalms, I would say that there are a number of inadequacies, as many scholars of late have come to demonstrate about the theory. I recommend a more linguistically rigorous model of investigation. See DA Carson, Stanley Porter, et al.

This is a great guide to the Psalms in the New Testament.