Saying you are looking at an Epson is like saying you are looking at a Chevy... Even if you say Chevy Sedan... it just isn't specific enough. Epson makes a lot of projectors, and you should be specific about the exact make/model you are looking at - always. This will help ensure that we are talking about the same model and that you are comparing apples to apples.
For example - EpiqVision...
Epson EpiqVision Mini EF12 projector specs, projector reviews and current street prices.
www.projectorcentral.com
EpiqVision...
Epson EpiqVision Mini EF11 projector specs, projector reviews and current street prices.
www.projectorcentral.com
EpiqVision...
Epson EpiqVision Ultra LS500W-100 projector specs, projector reviews and current street prices.
www.projectorcentral.com
Absolutely NONE of these are appropriate for business use and should be avoided absolutely, completely, totally. They are VERY wrong and won't deliver the brightness necessary for conference room use. They are designed for home use, and even then, their price is questionable for the quality delivered. No installation company that knows proper home and commercial projection would ever recommend an EpiqVision to you, or if they did, they don't know what they are doing.
From Epson, this list has a lot of solid models:
From all manufacturers, I would pick something from this list:
You will note that these are all 1920x1200 models, which is because that is the commercial standard.
If we switch things to 1920x1080 we get exactly ONE result...
This is why on commercial applications, using solid state light engines, and demanding higher brightness, we stick with 1920x1200 native resolution. It's the right way to go. I do know the Panasonic I linked to previously, has a menu option to force the projector to always use 1920x1080 resolution. Not sure about others on the list, but I would expect similar.
Elite makes okay screens. Their reliability is NOT in the same league as DaLite. Using a ALR screen requires a lot more brightness than a standard screen to get the same final image brightness and punch in a lit room. If your rooms don't have sunlight in them, then using a ALR screen is the wrong choice. It adds a lot of expense (more than $1,000) which is better spent on just getting a brighter projector. ALR screens are not 'magic'. They actually harm the image, introduce sparkle and image uniformity issues. They are great in a room with sunlight coming in or severe ambient light issues, but in a normally lit conference room with standard florescent lighting, there is no reason to use one. Better to get a standard tab-tensioned screen like the one I linked to in my previous post. Elite makes those types of screens as well. Probably cheaper... but as I mentioned, I know DaLite has better reliability overall.