Matte vs anti-glare

Hi.

I want to buy a laptop from XoticPC. As I have to use my laptop outside/around windows, I was wondering how big a difference there is between the stock matte screen and the anti-glare. I haven't been able to google what's specifically anti-glaring over the matte, other than it includes some kind of chemical coat that helps scatter incoming light.

My build plan (I've already decided on everything is) is a GT70 Dominator PRO modified for just shy of $2200. In addition to answering the above question, it'd be great if anyone new of a good deal for under $2300 THAT INCLUDES A GTX 880M. I'm not interested in SLI. A 780m is worth considering but not preferred.

Budget:$2300
Country to buy in: USA[/B]
Preferred size: 17.3 or larger
I like MSI or a ROG ASUS. Other brands will be considered.
Nothing refurbished or previously used.
Needed for video editing and heavy gaming. Battlefield, DayZ, ArmA 3, Skyrim, Civilization 5, Minecraft, Farcry 3, etc in 1920x1080.
Desktop will be used indoors and outdoors in sunlight/by windows.
Battery life not an issue. 2+ hours.
Prefer to buy online.
Windows 7 or 8.1
Matte or anti-glare; NEVER glossy.
Want it to last at least 4 years.
1TB 7200 HDD preferred. I don't like SSDs.
Optical drive preferred but not required.