First recommendation, wait another 30-45 days until after Cedia and some new projectors come out (if you can wait).
Second recommendation, if you don't want to wait, well get a Benq w6000 and pair it with a High Power 2.4 gain screen. Note though that your wall mount for the Benq would need to be pretty low (about 6 feet high if the top of your screen is mounted to 8 foot max). Optimally you'd mount it about 4 to 5 feet high to get closer to the maximum gain. If you are concerned about the warranty, you can get third-party warranties. You will get an insanely bright image by pairing the Benq w6000 with an HP screen. The Benq has an IRIS that can close down quite a bit and reduce the lumens enough as long as you mount it correctly so that even for night-time viewing it shouldn't be too bright. The lens shift is sufficient to get 1.8x to 2.2x gain with a High Power screen. This will give you a best mode of almost 2000 lumens in LAMP high, that is EXTREMELY bright. With the IRIS completely closed and in lamp low, you will get about 1200 lumens. All this depends on where you mount the projector though.
The high power screen gain varies depending on the position you mount the projector in relation to your viewing position. Hence, if the projectors lens was mounted exactly next to your head and the screen was mounted centered, then you'd get the full gain from the screen of about 2.2x to 2.4x gain.
Third recommendation, get a Mits hc4000 and pair it with a High Power screen (or other high gain screen), and then wall-mount it if you can mount it at least around 8 feet high, that is about the right height for a 110" screen I think. With the HP screen and the Mits, you will get about 1.3x gain or so. You can floor mount it instead and get about 1.5x to 1.8x gain depending on how high you sit up.
Fourth recommendation, get the Epson 8700ub and pair it with an HP screen, you can position it perfectly and easily get 1.8x to 2.2x gain. This means the Epson will give you a best mode of about 1200 lumens initially before the lamp wears off.
The Da-Lite HP screen even at 110" can be purchased for much less than $400 for the Manual B-version. The electric and other versions are more.
Disclaimer:
There are a few disadvantages to the High Power screen if you are going to have MANY people in your room at the same time as far as seating arrangements go and viewing cone area. Research it more if needed in the screen threads.