I just helped my brother in law install two soundbars in his new house.
With his 60" Vizio in the upstairs family room we installed this one:
http://www.bestbuy.com/site/vizio-s...eless-subwoofer-black/4969603.p?skuId=4969603
For his 60" Sony in the main floor living room we installed this one:
http://www.bestbuy.com/site/sony-2-...gital-amplifier-black/4890300.p?skuId=4890300
The Sony soundbar has 3 HDMI in, and one HDMI out with ARC. This allowed us to hook both the cable box and his Blu-Ray player up to the soundbar with HDMI and then run one HDMI cable thru the wall to his TV. This soundbar sounds excellent, and switching thru is allows him to get the full benefit of DTS HDMA and Dolby TrueHD, which he would have lost if we switched thru his TV and only used HDMI ARC. He can add wireless rear speakers to this setup later if he wants, but the shape of the room will make this a bit awkward so he isn't planning on doing so at this time.
The Vizio suondbar doesn't sound quite as good as the Sony, and it doesn't have HDMI inputs for running everything thru it. So we had to run 3 HDMI cable thru the wall to hook up his cable box, Blu-Ray Player, and X-Box 360. We then run one HDMI out from his TV's ARC input to the soundbars HDMI ARC port. So there we have to switch inputs on the TV and sound comes thru the soundbar. The sound is definitely better than using the TV speakers alone, and isn't bad at all, just not quote as nice as the Sony downstairs. The slim subwoofer and rear speakers are nice for him to have up there where the layout is much more conducive to rear speakers. He didn't want to spend the extra money upstairs that it would have cost to buy another of the Sony soundbars and the additional rear speakers.
Overall he is happy with both. It is really all about what you are looking for features wise. If you really need HDMI switching in the soundbar, and don't need rear speakers right away I highly recommend the Sony. We were able to get a great deal on it at $170 because it was the store demo (the HTCT790 has been replaced by the HTCT800) and the remote was missing. He uses a Harmony remote so that was no big deal to us. If you are ok with open box you may be able to find this model in your price range. The lower models do not have HDMI switching. Sony is pretty much the only one that does until you get into the more expensive Klipsch around $700 I believe.