radack,
You can get the "Power Support Crystal Film" from the Apple store if there is one in your area.
Here's a link to their website for more information. They may have dealer links on their website but not sure. The image is crystal clear though. I've also used anti-glare and the privacy films in the past but much prefer the crystal ones.
itsnowornever,
Unfortunately that's not been my experience. I'm beginning to think I've just got greasy fingers... LOL which really shouldn't be the case since I live in one of the driest climates on earth. I do get smudgies but I think it's less than with the naked screen. Anyway, I always have a microfiber towel near by. A quick wipe down gets rid of them.