Any sound bar with a wireless subwoofer is a good combination. LG sells some 2.1 sound bar configurations at up to 300w and i own a 5.1 HT system from them so they are a good brand. Samsung does too, mostly the same as LG if not more or less. Polk audio
and Bose have some and they are big audio acoustics names.
I would try to find a sound bar from someone who DOESN'T sell HDTV's (LG, Samsung, etc) so that you get nothing but audio quality in mind for your money.
Polk audio, JBL, Bose, Yamaha, Harmon/Kardon, etc.