The settings that each person uses will be slightly different due to the envioment they project in. Your best bet would a calibration disk like Avia or DVE.
You can always use the the one on THX dvd's like Star Wars Ep 1 or Ep 2.
yes, use the avia disc.
brief but exhaustive if you want it to be....
Also, you'll need to alter the settings for EACH different input.
eg, setup using AVIA when viewing via component, but these settings may be different if you then play a console vis s-video, so you'll need to setup again viewing through this input (and so on for each input)
You can store up to three individual settings into memory (I have one for DVD via component at night, one for comp during day, and the last for s-video from ps2).
Someone is selling the AVIA disc on these forums (type in a search).....very prompt service....great disc