If i were you i were hell get that Asus G50Vt-X1. No doubt is the best. Go ahead forget about the operating system type because that can be DIY upgrade to whatever you want later.
Performance is required for everything and Asus is a solid brand.
I am waiting for the price range to go down by thanksgiving even if its only 100$... it be funny if they bring it back up to its original price though...