By far my favourite film is Astia and/or Astia 100F

in many circumstances, much more like a neg film that's actually a transparency film - if you see what I mean. More shadow and highlight detail than most other tranny films I've ever used. More subtle colours than Provia (which has to be the ugliest film out there), but not the "washed" out look I get from the E100 films. Available in 10 and 50 sheet boxes for 8x10 I think