YULETIDE  CS4?  
(Version 1.3.3)

NATE HOULE  WOW! After using this sofware for about a week now I honestly don't know how I survived without it. It takes all the guesswork out of matching/harmonizing colors. Not only has Color Composer made my job easier, it saves my most valued resource... TIME! The only "downfall" of this software is that it takes some time to learn. But that seems to be the norm when working with such powerful software. Also, Master-Colors website does have some nifty tutorial videos and templates to help walk you through the motions. I was just too impatient to view 'em. All in all, this software is a huge time saver, and easily the best I've used in it's class.  
(Version 1.3.2)

RIDETHECOURTLAND  This is truly amazing software! I’ve been using it for about 6 months. Initially I purchased the “Standard” version. However, after using it for a couple of days I decided to upgrade to the “Professional” version. I contacted the company and they let me upgrade for the difference in price. Then they offered to give me a free tutorial session. I gladly accepted their offer. Amazing! The amount of time I save composing my color compositions is substantial. The quality and variety of color choices it provides has become indispensable to my work as a graphic artist. I highly recommend this plug-in.  
(Version 1.3.2)