I purchased the Optoma HD142X after a ton of research and time spent looking at projectors online. It has the best quality picture and feature set for the price range I was looking for. It really does have an amazing picture. I am currently using it with a 120" motorized screen. One of the reasons I went with this model was because of the higher brightness rating. I have it in my living room which has blinds over the windows, but theres still a decent amount of ambient light in the room in the middle of the afternoon. This projector is bright enough that it looks just as good as my LCD during the day.
Another nice feature of this projector is the 12v trigger port. Alot of projectors dont include this often overlooked feature. It allows you to automate your electric screen. By wiring the 12v trigger to the control box of my screen, I now have my screen automatically lowered when I turn on the projector. When I turn it off, the screen automatically goes back up.
Overall, Im very satisfied with the overall quality of this projector. It was very easy to tune and set up. The vast array of options and features make this one of the best, if not, the best budget home theatre projector with a full 1080p native resolution.
UPDATE: So Ive had this projector for a few months now and can say Im still just as happy as the day I got it. I use it daily for watching TV and occasional video games. Everyone who comes over cant believe how great it looks! Ive found that I really appreciate the backlit remote at night as it helps to find the keys. I also expected that it might start to get louder over time as dust built up inside, but it still runs quiet as ever. I sit right in front of it and dont even notice the sound even after watching tv nearly all day sometimes.