> I am interested in processing black-and-white images from a CCD.
Do you really mean CCD or just a monochrome imaging device?
If cmos is ok, try the Mitsubishi M64282 which is used in the gameboy camera. Check http://pages.zoom.co.uk/andyc/camera.htm for my original info on the subject or Google for "gameboy camera avr" for newer stuff.
AndyC