Thanks - I had looked at those earlier. I'm looking for (essentially) as small a version of THIS as possible:
http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_1919051_-1
It just strikes me that with the rather large number of (smaller than this) wall warts that are in the 12v/1.5A range, that there might be smaller (than this) units out there bare like this.