suzycat1,
One of the benefits of 120Hz is the fact that the picture can refresh quicker, which is where many critics note is critical in getting a good picture with LCD panels. It improves fast motion and the processing allows the television to show a smoother picture on LCD than ever before. So the noting of 120Hz is not just a catch-phrase (some stores will insist that 120hz IS the "way to go"...) but the reality is that there is a noticable difference and improvement in picture quality.
Does this mean anything to the casual user? It depends. Right now, 120Hz is ideal for Blu-Ray movies, video games and fast action television.
I hope that helps, and if you have any other questions, please let me know.
--HDTech
I am currently researching purchasing an HDTV LCD TV. Most research has pointed to purchasing a Samsung. I have looked at several models (mostly 46"), and some have a refresh rate of 60 Hz and some have 120 Hz. How important is this difference? Is it that noticeable, or is it not a big deal?

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