I second that. A great series.
(just as a side note, I am not sure I am getting the name of the books completely accurate, but they are close. I just don't have the books in front of me right now and I'm trying to recall them from memory).
I personally also like John Dominic Crossan. He has the massive Historical Jesus book, and then a shorter one, a Revolutionary Biography.
Geza Vermes has a great set on Jesus as well.
I did like Ehrman, his Apocalyptic Jesus book, but now looking at it, I see it kind of as a half hearted attempt.
Bruce Chilton's Rabbi Jesus was an interesting read, and he has some good points, but I wouldn't call it the best on the subject. It is more for a general audience, and I think he takes some liberties with his information.
E.P. Sanders has a wonderful couple of books as well. The Historical Jesus, and Jesus and Judaism are great works.
I liked Borg's book Jesus, but I am a little biased there as I have grown more fond of him as I am attending Concordia, where is a graduate from. I just like that I am in good company there.
Finally, I have to say that I find Morton Smith's book, Jesus the Magician to be interesting. He does have some out there ideas, but I found him to be an interesting read.
Out of all of those though, I have to say I probably most attached to Crossan's The Historical Jesus as it was the first real scholarly book on the subject that I read.
On another side note, I do enjoy that different debate books on Jesus. Borg and N.T. Wright have a great one called Two Visions of Jesus. I have about a dozen or so such books, and I think they are very interesting as they give multiple views in a condensed form.
