I watch HD Canucks and game regularly on my (now old) Sharp 46" 60Hz, and you guys make it sound as if it's unbearable.
I have never once said to myself "it's choppy".
You guys need to realize that it's not just the refresh rate that makes a difference. In fact, the refresh rate alone makes very little difference (if you can even spot the difference). It's the anti-judder and "smoothing" video processing that comes with some 120Hz+ TVs that creates majority of the "enhancement" that you guys are referring to. It's essentially an artificial enhancement performed by processors that come with newer TVs. Some like it...some don't. In some instances, the artificial processing makes things look fake...so like all things in life, there's a trade-off.
Basically, the "120Hz" and "240Hz" is more of a marketing ploy (and judging by the comments in this thread, it works). If you guys want the smoother image, you want a TV with "video processing" technology. Not just a 120Hz or 240Hz TV.
This is a good article:
http://reviews.cnet.com/4520-6449_7-6792632-1.html
Or if all of this gives you a headache, go with a Plasma. These new LCD technologies only exist to address the short comings of LCD technology.