I have been lurking around here for a long time, and I am finally ready to buy my MBP. But, even after reading all the glossy vs. matte threads, I still don't know. I went to the store and compared, and they both looked good, and had advantages/disadvantages. So I'm wondering, if I get glossy, is there like a film I can put over the screen to make it matte, like if I am using it in the sun?