Projector choice with this room...

I have a partially light controlled media room that's 20'Lx14'Wx7.5'H. The wall where the screen would go is 7' wide - I could go wider with a drop down screen but I would run into the door access (pictured on the right). I have a 4x4 matrix switcher and an Onkyo 7.1 channel preamp. The matrix switcher is not HDMI 1.4 and I am not that interested in 3D (for now). I have a dropped soffit that you can see from the picture that protrudes lower into the viewing area so a projector would have to be positioned below this soffit. I would be sitting about 13' from the screen. My walls are off white and I would be watching primarily during the evening so ambient light would not be much of a problem. I currently have a 50" Panasonic plasma that I feel is too small for the room. I am not interested in getting a larger tv. My budget for projector only is sub $2k.

I have read good things about the BenQ W1070 but since I would have to upgrade the matrix switcher to handle the 3D, is there a better 2D only projector better suited to my room? I primarily watch Uverse tv, blu-rays, and PS3 gaming (all upscaled to 1080P by the preamp). I can mount the projector on the wall behind the couch or from the ceiling.

Questions:

Would the BenQ be too noisy for this setup, given that I must mount the projector far lower because of the soffit?

Could I mount a short throw projector right off the soffit, which is roughly 4.5' from the screen location and drops 7.5" from the overall ceiling height?
-This would solve the noise problem and would be easier to get cables to.

Thanks in advance for your advice.

Nick