Pantone has a few hardware monitor calibration kits. I just got one the other day. It helped some, but I have 2 different monitors and even after the calibration I played with one screen a bit so it better matched the other. One problem is that even if your monitor is spot-on, perfectly calibrated, very few other people's monitors are. And MAC vs. PC monitors are also different in how they display things. In other words, ya can't win. ;-) Cheers!