Red Giant Software has released two free plugins that work in Final Cut Pro, Premiere Pro, and After Effects: a limited version of their great Colorista color-correction plugin, as well as a new plugin named LUT Buddy.
Interestingly enough, the free version of Colorista isn't just a stripped-down version of the first Colorista -- in its simplified form it can export Color Decision Lists, which is a new standard designed to be interoperable with other color correction programs. Yes, it's the color-correction equivalent of EDLs. Stu Maschwitz has more on CDLs and LUT Buddy. For reference, here's a look at the paid version of Colorista II.