TestFreaks posted a review on the Spyder3Express Monitor Color Calibration Device

Most people are very happy with their monitors and the colors they see, but then again most people use only one monitor. I've got a three monitor setup and I can see the differences between the colors of the monitors, taking a picture from one monitor to the other can reveal sometimes drastic color differences. It bothers me and I was looking into getting some sort of color calibration device, but luckily Datacolor sent me over their new Spyer3Express for review. The Spyder3Express will automatically adjust the colors of your monitor to what they should be, I was amazed at the difference before and after calibration, I knew something was funky, but the Spyder3Express fixed it for me quickly and easily.

Spyder3Express Monitor Color Calibration Device Review