Another good option is powered, i.e. active speakers, like the Audioengine A5+ and its many competitors. You can get pretty good sound in a small form factor without the extra box of an amp.
Benq W1070 projector w/ Chief RSM mount with custom interface bracket
119" Da-Lite Cinema Contour with High-Contrast (gray) Da-Mat screen
Denon X2000 receiver fed by Panasonic DMP-BDT210 Bluray player
Focal Chorus 700-series towers and center, JMLab Tantal 500-series bookshelf rears
Rythmik FV15HP sub