HD Projectors

Any of you guys have an HD Projector in your homes? Thinking of going that route when we re-do my downstairs in the next month or two. Looking for a crisp, clear picture that I can hook up cable, Amazon Fire Stick, and PC (for streaming WWE Network, not for gaming). Haven't measured but I'd approximate 100-120" of space on my wall. Any recommendations? Things to look out for? Do I need to install theater speakers? (If so, I can)

Looking for any ajd all info. Thanks.