Given that C prints are more expensive than regular color prints, film seems 
to be more expensive, etc, etc, I'm looking at reasons to continue this tack. 
I sort of like having the slides to look at now and then. I don't shoot much 
35mm anymore, so the option of going to PhotoCD is there, but less attractive. 
ProPhotoCD's are way expensive, like $35/scan.  And I'm not sure my computer 
can handle the resultant 72mb files.
I have a graphics program that can produce CYMK files from a scanned image, 
but I have to have the recording media available to port such large files to 
the printer, there is the expense of producing negatives from these files (I 
just don't feel like giving all that money to pre-press shops and would rather 
do it myself somehow).
So....this brings me to producing color separations for printmaking.  Am I 
better starting with a positive or negative image to produce color separation 
images for something like, say, gum bichromate?  I shoot primarily 120 and to 
a lesser degree, 4x5.  I don't use 35mm for anything serious anymore.  I'm 
about to go to Ireland and shoot a wheelbarrow full of images and I want to 
know what kind of corner(s) I'm painting myself into.
Any pointers on this newbie question?  
Dwight Shackelford