Preview What Your Google Web Result Will Look Like
Here’s a pretty nifty search engine results tool that allows you to preview what your Google web result would look like, even before it goes live. The tool allows you to see if your title, meta description and web URL will all show up. Although it is not guaranteed that your meta description will show up in the search engine result, the tool can give you an idea of how long the search engine result description will be. The tool also allows you to bold certain keywords, as well as save the result as a link.
I think this tool will help show if you have too long of a title tag or meta description (should Google use that as their output, instead of copy on the page).
Here is an example using Ten Golden Rules. As you can see, the meta description used does not show up in the current search for comparison result in Google.