I have recently returned from the annual meeting of the Society of Biblical Literature, where I heard several papers on the book of Hebrews. Somehow I managed to leave the bookroom without having made a single purchase this year. However, I did receive one book for free thanks to Bryan Dyer of BakerAcademic:
Harold W. Attridge, Essays on John and Hebrews.
I will post a review of the book once I have managed to dig myself out of the backlog of work that is currently burying me.