anyone uses monitor calibrator (such as Spyder 3 Elite) to calibrate your MBP LCD before?

erm.. i m not sure.. since this is the first time i deal with calibrator.. after i calibrate my MBP.. i think the tone become cooler a bit and it is quite obvious in my Dell 2409(is it because of cheap monitor?).. and when i use the Spyder to calibrate my other laptop (old Dell Precision) / other LCD (cheap range RM500 - RM600), the outcome generally adjusted the monitor tone cooler(blueish)... i dunno what is wrong eh..

and for some of my old display... the cd/m2 cant adjust up to the recommended value.. maximum can reach for my dell laptop is about 50 only (i think the LCD gone d right? ) and for other LCD monitors that placed near the window, the cd/m2 value needs to be higher due to the ambient is brighter right? but the value cant be adjusted too high due to the monitor capability i think..

and generally, after calibration, i will get blueish result especially for older monitor.. what is wrong here? anyone knows?
to calibrate your Monitor color, it's a hardware + software stuff.. i using Spyder 3.. but my main concern to buy this is to make both of my monitors (MBP and LCD) color look alike.. it has something called "studio match" to do that.. but i m still learning how to use it effectively..