Well, I've completed my bluray tests, and have come to the conclusion that it isn't worth it for 90% of the movies out there. Since I was testing, I got the movies from 'Da-Cloud' (tm). The only movie where it made a real difference is Pixar's Up, which is rich in fine detail. Most movies don't have important fine detail, and some put on a general fuzz.
With pre-processed movies from Da-Cloud, the ps3 upscaler does a fine job. Even a dvd, rented from the last Blockbuster, was very good. This revelation will save greatly on my Canadian Crippled bandwidth! :)