I'm been glad to see the recent arrival of the O. Palmer Robertson Systematic Theology Collection, as well as his God's People in the Wilderness in pre-pub, to add to the commentaries already available by him.
Could I also suggest his Preaching made Practical (Evangelical Press), but particularly the very valuable collection of essays in The Hope Fulfilled: Essays in Honor of O. Palmer Robertson (P&R)? Here's the table of contents:
Preface - Robert L. Penny
Acknowledgments - Robert L. Penny
Biographical Sketch - Jane Kincannon Robertson Dodds
Abbreviations
Part 1: Old Testament
1. Biblical Theology in Southern Presbyterianism - C.N. Willborn
2. Christ in the Psalms - Bruce K. Waltke
3. On Reading Ecclesiastes - Benjamin Shaw
Part 2: New Testament
4. "For Our Sakes Also": Christ in the New Testament - Richard B. Gaffin Jr.
5. The Significance of "Israel" in the Usage of the New Testament - George W. Knight III
6. The Prophecy of Zechariah in Matthew's Passion Narrative - J. Knox Chamblin
7. Psalm 110 in the Epistle to the Hebrews - Simon J. Kistemaker
Part 3: Theology
8. Systematic Theology and a Burning Heart - Robert L. Reymond
9. "Of Christ the Mediator" in the Westminster Confession of Faith - Douglas F. Kelly
10. "Baptism" in First Peter 3:21: A Study in Sacramental Theology - Richard D. Phillips
11. The Theology of Norman Shepherd: A Study in Development, 1963-2006 - Guy Prentiss Waters
12. Calvin's Correspondence on Our Threefold Union With Christ - W. Duncan Rankin
Part 4: Practical Theology
13. Redemptive History and the Regulative Principle of Worship - Dominic A. Aquila
14. Exodus 20:4-6 and the Regulative Principle of Worship - Joseph A. Pipa Jr.
15. The Ebb and Flow of Lectio Continua Bible Reading in the English-Speaking Reformed Churches, 1539-2000 - Terry Johnson
16. Global Kingdom Vision and the Westminster Confession - Samuel H. Larsen
17. Martyn Lloyd-Jones on Theology and Preaching - Robert L. Penny
Part 5: History
18. Confession Out of Crisis: Historiography and Hope in the Westminster Assembly of Divines, 1643-52 - Michael A. Milton
19. Preaching Christ in Post-Reformation Britain - Chad Van Dixhoorn
20. The History of the American Presbyterian Church and the Struggle for Religious Freedom - Morton H. Smith
21. Mercy Ministries in the Post-Bellum South: Care for the Poor and Palmer Orphanage, 1894-1920 - Robert L. Penny
Part 6: Tributes
22. Reformed Theological Seminary - Robert C. Cannada Jr.
23. Covenant Theological Seminary - William S. Barker II
24. Knox Theological Seminary - Michael A. Milton
25. New Geneva Theological Seminary - Dominic A. Aquila
26. African Bible Colleges - W. Wilson Benton
Appendix: Select Bibliography - Paul Austin
