I use a big, bulky, and heavy CRT-based front projector. An Electrohome Marquee 8000. It's still in production with a few changes as the Video Display Corporation Marquee 8500. I run it with a line doubler all the time, and sometimes hook it up to the PC. It delivers a picture that is superior to all but the very best DLP based projectors and a small handful of still better CRT projectors, most of which are modded versions of the Marquee chassis anyway.
Marquees like mine can be had on the used market, and in great shape, for less than the cost of a new DLP or plasma HD set, and you get a very long service life out of CRTs (My tubes are strong and healthy with 17,000 hours on the meter, and no screen burn worth noting is visible yet) and of course there's something to be said for the 120 inch diagonal picture!
I got mine for 500 bucks via government surplus. I have two of them, actually, and paid less than 1000 bucks for both of them, delivered to my door. These projectors sell new for about $30,000.
If you have the space and are willing to commit a room to dedicated home theater use, a CRT based projector is still the top choice among well educated home theater enthusiasts. CRT offers the best picture quality, period. (Comparing the best CRTs to the best of any other technology) DLP is catching up, but it's not there yet, and the best 3 chip DLP units are very expensive.
CJ