I keep a thin cloth between the trackpoint and the screen: it prevents smudges (which can easily be wiped off with a damp cloth), and is helpful for dealing with dust. I can't stand fingerprints or dust on my monitor.
Brightness is good if you get an LG Phillips screen(which I have). The Samsungs aren't as good. It's not glossy, so the colors aren't the best, but at least I see the screen rather than my ugly mug.