This is the best I've seen yet:
THE UK HOUSING MARKET: BUBBLES AND BUYERS
See section 3 in particular. Section 2 has some lovely bits on the media.
I might try to write an abbreviated version for use on this site in the wiki, etc, if he gives his approval.
I will try and have another think about other psychological processes driving the housing bubble, but I think that Farlow hits the nail on the head in so many ways.