You don't always need a plugin. You can do a respectable job with the three-way color corrector gray slider and any of the color tools. This is the Photoshop version:
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www.kozco.com]
Yes, hot skies are a problem and you can a gradient effect to help with that although I've never done that particular trick in FCP.
You can't do this with a plugin, but the big kids really push the effect over the edge by painting light in windows of the house.
Koz