In terms of resolution, depends on which film you are shooting, ISO 100 or 200, slide vs negative film. I have prints made from ISO 100, Kodak gold 100, Ektar 100, and Fuji Color 400 next to prints from my Sony A900 and Sigma SD9, printed by a very good Canon inkjet printer, at viewing distance, these are 11X14, I cannot see any difference in detail. Maybe up very close there is more detail in the Ektar, but I would need to know where to look. Now if I were to print 16X20, I think the Ektar 100 might show noticeably more fine detail. The Sony A900 is 24MP, the Sigma is around a true 12MP, but I have 8X10 and 11X14 taken with my A700 and bottom feeder Pentax K2000, which are just fine. Like you I have stopped shooting color film, cost of film, processing, and printing, and I do have a darkroom, is just too high. Maybe buy a DF from KEH, shoot a few images then have them printed at a Office Max or Walgreens, 8X10, 11X14 and One 16X20 then compare to prints you have made from a slide or negative. If you don't like it send it back. Other thought, if you are willing pay $3000 for a Leica why not go big, a Pentax MF DSLR?