We've been using the Panasonic PT-VX600U (now replaced by the PT-VX610U) for several years now. 5500 lumens, $1200, great lamp life. While they aren't 1080p native, we run HD/widescreen content on them all the time and they support a wide range of resolutions. Never had them reject input from a device including ultra finicky Macs. We've run them direct wired with VGA/HDMI or through baluns with no issues. Super adjustable 4-corner digital keystoning and a dedicated manual vertical adjustment knob for fine tuning height. They're also Crestron enabled if you're into that. The newer model has a higher contrast ratio (16000:1) and some kinda ambient light sensing that will adapt the brightness and halftones to be more visible (but I'd most likely leave it turned off). We almost entirely use them for rear projection on 10-15' screens (and even a mammoth 20' screen when a client's supplied Christie went tits up) and never gotten any complaints about visibility or clarity.
All that being said, what kinda ambient light are you going to be looking at in your room? 5000ish lumens may be enough for a small/medium breakout with dim lights, but a larger HoW scenario may require higher lamp output or a high quality screen with a good gain rating if the ambient light will be higher.
Good hunting.