I prefer 24 roll drug store grade film with the Olympus PEN FT (review here) because it makes for 48 exposures. With 36 exposures I tend to start wasting exposures to muscle through the last frames. The PEN FT is a beautiful camera that is great to use. Especially impressive is the 40mm f/1.4 that really squeezes a great amount of detail out of such a small exposure. Also enjoy the default portrait orientation. Here are some sample shots below and here is a link to all of my PEN FT shots.