Digital BW, The Print

You may want to stay in color all the way through the digital process. In other words 
produce a color neg on the Pictorino. Sounds odd, but you can control density much better 
with color inks than in gray scale. Your actual printed output will be gray scale because 
that's what the emulsion (platinum, albumin, etc) will make. See Mark Nelson's on-line 
book (which is really well written and produced) at www.precisiondigitalnegatives.com. I 
think this may be a real advance over the Dan Burkholder approach, which is gray scale 
based.