Here's a great article explaining matte vs. glossy: http://www.robgalbraith.com/bins/multi_page.asp?cid=7-10041-10146&sr=hotnews. Scroll down toward the bottom of the page and look at the two photos. Do a mouseover to see what happens to a glossy display (top) and a matte display (bottom) when the blinds in the room are opened. The difference in the matte display is barely perceptible. Why people who actually do work on a computer would want a glossy display eludes me.
Notice that the article is about Mac hardware with a WUXGA (1920x1200) display. Some of you may remember that I've been looking for a WUXGA laptop. For those readers thinking, no, he couldn't have, he didn't, did he? Yes, I did. I ordered a custom built Macbook Pro with an SSD and a 17" matte screen. I had to pay $50 extra for matte. Worry not, I will install Windows 7 on the machine and use a real external mouse.
I could have purchased a 17" HP with an older, first generation i7 processor for a lot less. But it wouldn't have been truly portable. The HP is much heavier with terrible battery life and a power brick the size and mass of a real brick.