Ordered the projector last night.
For me, the choice was between the IN72 and the Hitachi. The H31 wasn't bright enough. The IN72 is very bright, if you can believe the projector guide on 'projector central', but the lack of zoom put the projector at or behind our seating area, and I want to just put it on a coffee table for now.
The Mits and HD70's offset was too much for where I want to use the projector.
As I continued to move up the price range, looking for a flexible, bright projector with better contrast, I was approaching $1300 (Z5), which was more than I wanted to spend.
While I can control the light, it won't be a pitch black room.
Hopefully a bright, saturated picture can make up for the loss of contrast.
I also wonder if the desire for high contrast, high shadow detail isn't partly a function of the type of movies you watch? If you watch 'dark' movies, this would be a very high priority.
Anyway, I'll know in a few days and give you my impressions.
Currently have a 51" Hitachi RPTV (CRT) which I have enjoyed. I've kidded my kids over the years as I've increased the picture size, that I had two choices-- get new glasses or get a bigger TV.