I use LG NB4530a. Sounds pretty damn sweet. Just over 1K in Klang Valley when I bought. Wireless sub/optical cable included.

My setup:-
XBMC on Mac mini - set to downmix to 2.0 (hdmi)
Xbox 360 (hdmi)
Unifi Hypptv box (hdmi)
Sony 50W704a - optical out (pass through)
LG NB4530a (upscaler mode)

TV wall mounted, soundbar on cabinet.

All controlled with logitech harmony 300.

im using philips fidelio sounbar. after listening all type yamaha soundbar im chosing this one.

all type soundbar surround sound crap in my ears. fidelio got true surround. u can detach left right front speaker and put at back left and right. battery operated.. anyway .. not everyday watch movie on surround mode..

for astro it depends.. if your astro hd setting audio to 5.1 .. the volume will a bit high compare non hd channel. but this model got auto volume... u just use auto volume at remote if you change from 5.1 to stereo non hd channel on astro.

when u try to soundbar, dont get cheat with boom boom sub sound.. compare with main dialoque balance between spoken lines, sound effects and music.

bring u own movie on your handphone.. u can try the sound yr fav movie cause this model got bluetooth.