how do you calibrate a camera for color

[Lionheart]

Ok, I'm calibrating my monitors and printers-been at it since 10 am this morning-this is really slow and time consuming. Now how do I calibrate the cameras so what comes out of it matches what I just shot? I've got 4 cameras to calibrate, two 10D, one 1D Mk II, and an older D60. Is this even possible? I ended up getting the colorvision printfix Pro suite.
Leon

[masdog]

I don't even know if that is possible. I know you can change the color spaces that the cameras work in, but I don't think there is a way to calibrate them since there are so many variables.