This is just me personally, but in the entry 120hz model catagory I'm with Chrono like the Sharps this year. Their U77 series we have at work are pretty nice in that price catagory. I actually prefer their picture to the Samsung's entry 120hz series 6 tvs. And they seem to be slightly cheaper then the Series 6.
One problem though is your going to have to go with a 120hz tv if you want better image quality. The 120hz tvs are going to generally have superior audio, color range, refreshrate, scalers, contrast ratio, features, etc... to the 60hz tvs
you can always disable 120hz feature though