One of the best NT scholars out there is Tom Schreiner at Southern Baptist Theological Seminary. He is particularly helpful on difficult issues such as Paul’s view of the Law, the role of women in ministry and a biblical understanding of perseverance and the warning passages. On his faculty home page, there are a number of links to articles, reviews and even chapter excerpts from some of his books. I highly recommend this page as a resource to you. You can find it here.
On a personal note, Tom has been very gracious to me personally. He was kind enough to give me an advance look at his now published NT Theology so I could use it in preparing for a course I teach here at Grace. This forum provides me with an opportunity to thank him publicly.