John,
At any computer store - even Walmart, you can get the cloths which are specifically for cleaning dust and the like off of glasses. Most have their own spray you can use with a anti-static cloth. Or you can buy the Monitor cleaning kits...
I simply use an empty bottle with Alcohol in it - like what you get with a CD cleaning kit, and a soft hankerchief just washed and dried. :ess static that way, and its very soft.
The deal is I turn off the CPU about an hour before I go to bed, then unplug the monitor and let it cool down for 30 minutes - then I clean it and let it set overnight. 1st thing in the morning, its ready for another months work. 8)
Cheers,