Your budget along with the light requirements of a 120" AT screen will effect your choices. in the > $3000 projector forum, most projectors have the needed lens shift. In the budget <$3000 you have less to choose from. I am using a used Planar 8150 that only puts out 1000 lumen on high but I have a 2.8 Gain screen and use eco. I could not really afford to buy a $5000 projector so I went with a older used high end unit that has great color, high quality lens, shift and a 1" DMD ( I am a dlp fan) If I was to buy new I would probably look Runco, Sony or JVC, but like cars they loose value very fast when used a year or so but still perform very good.. Good luck!