cwilson,
Just to answer your question to milori, I don't know how much the Madrigal is, but the Christie is about $49,000+ new and the Calibrated JVC G20 is about $18,000.
However, take a look at ebay and search for "DLP Projector" and you will find 2 Digital Projection Inc. projectors for sale. Both are in the price range you specified. I have seen both units and if I had the money, it would be no question that the 3 chip DLP is the way to go. The color was incredible and these projectors will allow you to either have a 20' screen at near cinema quality or a 12' screen at cinema brightness levels.
I wish I could recommend someone who carries these units in a show room, then you could see for yourself.
Good Luck,