They all look like good choices given the lighting. Just a couple things to take into consideration:
-the xenia and GSPs can spread like weeds so keep a close eye on those
-make sure the gorgonian is of the photosynthetic variety, and i would probably avoid briareum (again due to its tendency to overgrow anything in its path)
-if the plate coral is Fungia sp. excellent choice, if its Heliofungia its going to get way to big (i'm already running out of room for mine
-a frag of torch or frogspawn would look great!
-can't go wrong with zoanthids or ricordea...my favorites after acropora
what are you using for circulation in this tank?