Blender related Xmas present ideas?

I’m looking to treat myself to some new stuff to help me improve my Blender/3D skills (Archiviz ideally)
Has anybody any recommendations for good books, DVD’s paid tutorials etc.

I’ve already got CGCookies Vehicle modeling training series which I’ve not had time to finish yet but I’d highly recommend.
Also ‘Digital Lighting and Rendering" by Jeremy Birn and
"Light for Visual Artists’ by Richard Yot are both good reads.

Cheers.