The use of creative LUTs has exploded over the last few years. One company that you might not have heard of was there at the start, Picture Instruments. They've got a new FCPX plugin that allows the mixing of up to 5 LUTs in the Inspector.
We have been to the previous three and can tell you first hand, if you are interested in Final Cut Pro X, this is the event of the year to attend.
Roger Bolton from CoreMelt has announced the release of PaintX, a tracking paint tool for Final Cut Pro X. There is also a special offer until the 8th of September.