Today I uploaded the German translation of the Puggalapaññatti by Ven. Nyanatiloka Mahathera. You can see the new translation starting at http://suttacentral.net/de/pp2.1 (it might be a few days before it shows in the index also).
Again, the original with comments can be found on www.palikanon.de. © 1995 Oskar Schloß Verlag.
The Dhammasangani by Bhikkhu Santuttho can be found on:
An unpublished version of the same work by Bhikkhu Nyanaponika exists and I am trying to find a copy of this. I believe the original manuscript is with PTS.