I noticed these as well, and am quite interested. I've been wanting to try C-41 processing for sometime now. Never having done C-41 before, I am however concerned about the safety of the stabilizer due to the formaldehyde. I was wondering, is it possible with modern color films to omit this step? I think I remember some talk about another (safer) chemical mixture that could be substituted for stabilizer (called final rinse) made by Kodak and available at Adorama. This is my only concern about doing C-41. These kits do look nice, though, and are probably what I'd want to use (sans stabilizer if at all possible - please let it be possible!!).