Sorry for the delay, folks. I had a few other projects going on and finally am in the process of uploading the set!
Here is an image of Ilford Delta 3200 - shot at 1600 and I think pulled 1-stop. Shot from a PZ-1p, FA31 Ltd.
And here is a similar image taken with Ilford Delta 3200 - shot at 1600 and also pulled 1-stop. Shot from Pentax 645, 645-A 75mm F2.8
This is part of the reason I have invested more in 645 format now. In essence, I can get some pretty good low light capability if I can shoot at 1600-3200 ASA. To me, the 645 results look cleaner and sharper.
MIND YOU, these are scanned on an Epson 4490, which does pretty good for 120 film but just "okay" for 135 film, in my opinion. I'm sure a really good 35mm Minolta, Nikon or other scanner could pull out more detail, but I'm beginning to really like the results from 120 film.