Go for RA4 printing. The rollers and motorized bases are cheap on ebay. You can get set up for less than $50. I take my c41 to the local lab for processing. I may have to start processing my own C41 since there is only one lab left in Thunder Bay that will process 120. RA4 printing is really easy and paper is relatively cheap. You can really cut your costs down to less than b&w if you buy roll paper and cut your own. There are a few threads here on apug about cutting sheets from rolls.