We are a small water agency in rural California and need a digital projector for our Board meetings and for various public information exercises in spaces from our own conference room (seating maybe 20 at most) up to the size of a school classroom or small auditorium. I have been looking online at the Epson projectors (such as EX7220/7230/7235) but don't really know much about digital projectors and so would like some help making a good choice. Content would be mostly PowerPoint or other slideshow software, or video. Source would usually be a laptop computer (and yes, I know that video usually needs a hardwired connection rather than wireless).
Thanks for enlightenment on a subject about which I am really inadequately informed.