Although the projectors Dennis mentioned are LCD based, and you asked about DLP, I would highly recommend you consider LCD as well. The LCD's of today are starting to match DLP's in terms of contrast and other categories. Also, before you buy a projector, make sure you don't suffer from Rainbows on DLP's, if you do, you'll hate them. I would recommend you spend some time on
http://www.projectorcentral.com to read about the various technologies and read reviews on suggested HT projectors.
I love my Z2
Randy