Going back to the subject of calibration, I recently bought a calibration device because I have a new digital SLR camera and started using Photoshop. I want my monitor to show how my prints will look.
I am using a Datacolor Spyder4Elite, ($250), on my Auria EQ276W monitor and the added Spyder4TV HD upgrade, ($70), for my five year old Panasonic Plasma. There are other devices that do the same thing.
I have greatly improved my picture quality on both my plasma and monitor. However, the directions for the Spyder are sparse. There is a learning curve. And I am still trying to figure out the base color temperature of the monitor before starting calibration.
However, for anyone who would find the picture quality improvement worth $250 to $330 for monitor and TV this is a useful calibration method.
I am not enough of an expert to say that there are not less expensive software solutions that will get you to the same place.