definitely go with the Texas Instrument's DLP technology. Maybe go with a projector with 720p resolution(1080p if u got the dough). As for brands, i have no clue who's the top brand manufacturing the best projectors.
Look around the internet, compare brands, prices and specs. Go to the Texas Instrument DLP website(google) and see what's in your price range. Read some reviews and get other people's opinions. Then before you even purchase anything off the net, have a look at the real thing at a electronic's store(you might even buy it there). There's stores out here in Sac & Bay that specialize in nothing but home entertainment. Ask the experts/salesmen at the store for their personal and honest opinion.
The magazine Home Theatre has an article atleast once a year comparing tvs, hdtvs, plasmas, projectors, dvds, speakers, receivers and etc.
If i had the space and home entertainment system i'd definitely be looking for a projector, but i'm not ready yet. Good luck on finding a projector for your needs.....