Hoot, just give APX100 a try, I personally really like the film.
Beniliam, how large is the Nokton, I have been thinking of getting one as an upgrade to my Jupiter 3 (there are some problems with the lens, and I wouldnt mind the reliability of something modern).
If you are looking for a new 'look', you could try to pick up a jupiter 3 (or 8), the jupiters are really small and fast lenses, maybe you could try and find one of those?