Mac or PC? I read on the data color site that spyder2express has to run with the spyder3express software if you are running lion. Which I am. Then I read that it doesn't read LCD backlight, which I also have. I'm not really trusting my calibration right now until I get some more test prints from Miller's. I will let you know how it turns out.
Well, I got the Miller's test prints in the mail just now. I compared the non-color corrected photos to the uncalibrated default colors on the monitor, and it matched pretty much perfectly. Their color adjusted versions didn't match either profile. Looks like I will be sticking with the uncalibrated version.