Datacolor User to User Support Group.

Ok first of all my primary purpose is viewing videos.  Second is
digital pictures.  So what is best setting the default seems that my
monitor is really quite dark like around a 35-37 luminance.  Now what
I have....

I have a Samsung Syncmaster 957MB monitor which has MagicBright
brightness controls.

Luminance:
Text: around 30
Internet: around 45
Entertainment: 60

Now when I am at the highest brightness fonts are more blurry. Should
I calibrate when it's at the default text level?

Second question I have is when I measure ambiant light it informs me I
should use a target of 5000K. But 5000K seems real yellowish and my
room is already yellowish since I have 3 daylight 60watt bulbs on a
dimmer. Pretty dimmed down for comfortable viewing so I am curious why
it would indicate 5000K as target when room is already quite yellowish?

Third is what should I keep my kelvins at on the monitor? Because I
currently have it set for 6500K and after calibrating colors I notice
this can drop down to say around 6300K-6400K at optimum setting.
Should I than modify the Kelvin slider on my monitor to try to keep it
at 6500K or just leave the Kelvin untouched after calibrating the RGB?

Fourth should I be using the default gamma for video viewing or a
lower gamma setting like 1.8?