Cleaning marker off a LCD monitor?

My son decided to draw on my 20" Apple cinema display with an orange Sharpie permanent marker? I know you are not supposed to use ammonia or alcohol based products but, will iKlear get this off? What can I use that will do the least amount of damage to my screen? Also I have a couple of scratches too. Is the any new products for these problems? I have a product called Clean Lens mending kit but, it says not to use on lenses with an anti-glare treatment.
Thanks for your help.
Paul
G5 1.6GHz   Mac OS X (10.3.9)   1.25 DDR SDRAM 80GB & 160GB GeForce FX5200

Never mind, I searched the web and found out that a 50/50 mix of isopropyl alcohol and water works great. The "permanent" marker came right off. I actually used only about 35% rubbing alcohol. Now the screen is clean & bright but, the scratches are more noticably.

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