Hmmm ... no silver, eh? Hehehe ... tell'em the difference between a full frame CCD and DX size CMOS chip is the CCD doesn't use silicon. That's why there's no "S". Except for the Nikon FF CCD, it's 0.1mm x 0.2mm less than a FF size, so it's called an NCCD. Betcha he'll buy it.
Regards, Art. (Wish I was at the next meeting - I'd go Letterman on him)