The best deal in this price range was some refurb Acer h9500bd's not long ago (I think on Tiger Direct) for $720, but I think they sold out right now. That projector has the best blacks in your price range, though the IRIS might be a bit bouncy for you, but even with the IRIS disabled it still has some of the best blacks. The Mitsubishi hc4000 still has the best native contrast overall for any sub-$1200 projector, but it has no IRIS. There are some Mits hc7800's for $1200 right now, but that sounds like more than you want to pay.
OK, I think the Benq w1070 beats all those you listed above even in 2D, and I've seen them all except the Acer, even own the Viewsonic Pro8200 as well as several others. The hd20 is ok but it's not very bright and doesn't have the best contrast. $700 for an Epson 8350 is pretty cheap, didn't know you could even get a refurb 8350 for that price.
You could also look into a refurbished Mitsubishi hc4000, but not sure if there are any refurbs floating around as it's more expensive.
You might also look into a used JVC HD-250 or JVC DLA-RS2, but you might not find one in that price range (maybe, $1000 or less possibly).